My brother recently met my best friend again after many years (she moved back to the UK after some time abroad and he is at university in another city). I had invited both to a party. I could tell at the party that my brother was attracted to her and kept talking to her. And she seemed very into him as well and they kept chatting.
Today, he phoned me and asked me for her number, but then asked if I mind. I told him I do mind, and it would be too weird for me for my best friend to date my brother, two people I am very close to. He went quiet for a while, and then said ok after I told him he should not have asked me if I was ok with it, if he wasn't ready to take no as an answer.
He then went quiet again and said alright in a very disappointed tone, and said he would talk to me later.
But now I am feeling guilty. Should I have let my brother ask her out and date her? I know that she is interested in him as well from the way they were with each other the other day.
Not sure what to do.