So I have name changed for this as I feel so stupid. I've been with an amazing man for a year, no problems except for his female workmate friend, she's very full on and a while ago she told me drunk that they were going to go off together, passed it off as just joking and he was initially annoyed but has forgotten it now, I on the other hand have not, I was struggling with anxiety due to other things and this has sent me down a really bad path, I'm worried all the time, drinking too much, it's just ruined things for me and she's still there in the background, I know she messages him as when he's on his phone she is often at the top of the texts lists and calls lists,I don't think it's a physical affair but how do I know, he's sick of me talking about it now and I am not ready to give up the relationship but I feel so sad now, she has a boyfriend by the way