Should I reply to this guy or just ghost him for good?

I'd move on.
If he sends a polite message, reply but no flirting or sexy pics.

Why would he react to my story tho? What is he doing? I’m kinda confused tbh...

Did you text him at all in those 2 weeks? You cant exactly get mad at him for ghosting you that little while if you werent making an attempt to talk to him yourself either.
It doesnt seem beyond reason that someone he knows could have died, he checked social media out of boredom but couldnt muster up the motivation to text anyone.
And he's right, he's not obligated to text you back immediately after getting a reply.
Seems like you're being a bit harsh.

I mean I get it but is kinda rude to leave someone on read if you’re initiating a conversation and there have been multiple times when this has happened before I just never called him off...I asked politely anyways and he got all offended...

People get busy sometimes, its not rude. And you're only in the talking stage, you cannot expect all of his time.

Your 'asking' was hardly polite, it reads as very accusatory and snappy. Most people would have reacted the same way- offended.

People get busy sometimes, its not rude. And you're only in the talking stage, you cannot expect all of his time.

Your 'asking' was hardly polite, it reads as very accusatory and snappy. Most people would have reacted the same way- offended.

I didn’t text him for 2 weeks cause I got pissed he didn’t wish me happy birthday and it just sounded like a lame excuse. Also after our last call, before my birthday he said he was gonna find time to invite me over to his place before lockdown was over so we could finally see each other or go to the park then he never did and now he’s acting distant. On and off like ever since my birthday we’re not talking as much as we used to anymore. So I’m kinda pissed cause all of this ngl and feeling confused...

I personally think you're overreacting but you dont seem to like him much in general. Simply not liking him is a fine and valid reason to end things and not something you need to need to justify with all these examples.
In the future, speak to someone if they upset you. Ghosting them for two weeks is not going to help the situation.

I hope he ghosts you

Probably chatting with lots of girls and collecting plenty of sexy pics.
As he decides who he will try to meetup with after lockdown and his top options for backup girls.
Those types of guys are best avoided, unless they are really hot and you are open to casual sex whenever you're bored or between dates with potential bf's.

What's the situation now

I’ve been talking to this guy for 4 months. We’ve only been able to meet once as of lockdown. We’ve been video calling and texting ever since (some sexy video calls but nothing too explicit). One day, after a sexy video call that lasted almost 5h at night I tell him is my birthday that week. The day arrives and he doesn’t wish me happy birthday, 4 days later he texts asking how it was saying sorry he missed it but someone he knows died and he wasn’t feeling right yet he watched all my ig stories on the day and even posted one at an online wine tasting event. Then he disappears for another 2 weeks and shows up by replying to one of my stories and a selfie. I replied and he left me on read (not the first time this happens) so I decide to text him “Are you avoiding me? Honestly I don’t understand why you strike a conversation if you’re going to avoid me afterwards” and he texts back “Avoid you? I’m sorry if I was unexpectedly busy this evening!!! Was just saying hi... didn’t realise there was a time constraint by which I had to reply in..!” After this I left him on read and didn’t say anything else. He keeps watching all my stories.

And he actually came back a couple of days after reacted to a selfie of mine with this emoji 😍