Really struggling with what to do here. I've just found out that my partner of 9 years had a relationship with somebody else Dec 23-Feb 24. I'm not really here for everybody to say 'just leave him' I'm already fully aware that's the most logical reaction. He proposed to me in May this year and we have our wedding booked for next year. He keeps telling me that he knows what he did was disgusting and unforgivable but that he ended it because he knew it was wrong and he wanted to be with me (never told me though, I found out from the other girl).
He's claiming that after he got himself together and put all his effort into moving our relationship forward, hence the proposal.
I don't know what to do, I believe he is genuinely sorry but I just can't look at him the same any more. I feel so angry and betrayed 😭