I cancelled date last minute now she doesn’t reply

Hi, there is a girl I was dating who I really liked. It was going really well and we had set up a date for Saturday night dinner and theatre. She arrived at the restaurant and was waiting for me.
but as I was leaving my place.. My flatmate just found out her boyfriend cheated on her and she had a mental breakdown, I mean she literally was on the floor half naked crying her eyes out screaming, throwing things around going absolutely crazy. I was in shock I didn’t know what to do, so I was trying to help her at least put on some clothes and stop crying but she wouldn’t stop she was having a full breakdown and screaming, I’ve never seen someone cry so much.
I went to leave for my date as I was already late and then my flatmate she continued crying saying don’t leave her alone she wants to kill her self etc…
I didn’t know what to do so I cancelled my date last minute whilst she was at the restaurant waiting for me, I said “I’m really sorry but im still at home and my friend is really sad and needs me, I feel really bad leaving them by themselves - can we do another time?”
She replied saying “it’s ok, you can be there for your friend”
Then I replied to her and asked if we can reschedule to another day that works for her but she didn’t reply, so I sent another message suggesting a specific date to see if that works but she again didn’t reply so then I send a third message saying “I’m sorry for cancelling, please can I have a second chance?”
But she didn’t reply, I don’t know what to do as I really regret cancelling and I am really angry at my flatmate now i really despise her for making me cancel and ruining my date but then it was my decision to stay with her but I just felt so bad leaving her by herself

Hi, there is a girl I was dating who I really liked. It was going really well and we had set up a date for Saturday night dinner and theatre. She arrived at the restaurant and was waiting for me.
but as I was leaving my place.. My flatmate just found out her boyfriend cheated on her and she had a mental breakdown, I mean she literally was on the floor half naked crying her eyes out screaming, throwing things around going absolutely crazy. I was in shock I didn’t know what to do, so I was trying to help her at least put on some clothes and stop crying but she wouldn’t stop she was having a full breakdown and screaming, I’ve never seen someone cry so much.
I went to leave for my date as I was already late and then my flatmate she continued crying saying don’t leave her alone she wants to kill her self etc…
I didn’t know what to do so I cancelled my date last minute whilst she was at the restaurant waiting for me, I said “I’m really sorry but im still at home and my friend is really sad and needs me, I feel really bad leaving them by themselves - can we do another time?”
She replied saying “it’s ok, you can be there for your friend”
Then I replied to her and asked if we can reschedule to another day that works for her but she didn’t reply, so I sent another message suggesting a specific date to see if that works but she again didn’t reply so then I send a third message saying “I’m sorry for cancelling, please can I have a second chance?”
But she didn’t reply, I don’t know what to do as I really regret cancelling and I am really angry at my flatmate now i really despise her for making me cancel and ruining my date but then it was my decision to stay with her but I just felt so bad leaving her by herself

I think you just saying your housemate was sad doesn’t really show the gravity of the situation and seems a bit dismissive. Maybe try explaining in more detail and asking if she is still interested or not

Much as above, plus you were already late. To her, you were making an excuse because you couldn't be bothered to turn up.

Yeah, assuming we're reading it right, that's how it looks. Flatmate aside, if she's at the table impatiently flicking at a menu and you're still at home, you've already messed up, so then adding some apparent silliness about someone being sad just looks like you didn't really have this date as a priority, you didn't even try to salvage it by inviting her over?

I mean, supporting a suicidal roomate rather than going on a date isn't the wrong decision. A bad outcome for your relationship, but if the alternative was to leave your roomate rolling around in a bad state then what else are you going to do?
"Sorry I'm late, roomate was in a low spot."
"Are they okay now?"
"No, I left them naked, crying and rolling around the foor. Have you picked a starter yet?"
"..."

...I know it's not a real restaurant, but I kind of want to know what the starters are.

What, and let the flatmate suffer in ascending doom? Just set things straight with gf is what I see as the true solution here. If gf wants to break up, valid choice. If gf wants to continue, also valid. Life has to move on, as do you all.

Do you ever get the feeling you're replying to the wrong post?

Hi, there is a girl I was dating who I really liked. It was going really well and we had set up a date for Saturday night dinner and theatre. She arrived at the restaurant and was waiting for me.
but as I was leaving my place.. My flatmate just found out her boyfriend cheated on her and she had a mental breakdown, I mean she literally was on the floor half naked crying her eyes out screaming, throwing things around going absolutely crazy. I was in shock I didn’t know what to do, so I was trying to help her at least put on some clothes and stop crying but she wouldn’t stop she was having a full breakdown and screaming, I’ve never seen someone cry so much.
I went to leave for my date as I was already late and then my flatmate she continued crying saying don’t leave her alone she wants to kill her self etc…
I didn’t know what to do so I cancelled my date last minute whilst she was at the restaurant waiting for me, I said “I’m really sorry but im still at home and my friend is really sad and needs me, I feel really bad leaving them by themselves - can we do another time?”
She replied saying “it’s ok, you can be there for your friend”
Then I replied to her and asked if we can reschedule to another day that works for her but she didn’t reply, so I sent another message suggesting a specific date to see if that works but she again didn’t reply so then I send a third message saying “I’m sorry for cancelling, please can I have a second chance?”
But she didn’t reply, I don’t know what to do as I really regret cancelling and I am really angry at my flatmate now i really despise her for making me cancel and ruining my date but then it was my decision to stay with her but I just felt so bad leaving her by herself

Yeah, assuming we're reading it right, that's how it looks. Flatmate aside, if she's at the table impatiently flicking at a menu and you're still at home, you've already messed up, so then adding some apparent silliness about someone being sad just looks like you didn't really have this date as a priority, you didn't even try to salvage it by inviting her over?