I’ve been seeing someone for four months and have yet to meet his friends. We’ve been taking things slowly (my choice) because I’d recently come out of a long term relationship and wanted to take time getting to know each other first.
Recently he went a bit distant on me and I didn’t know why. But last night we had a heart to heart and he told me that he had been out with an old (female) friend and started opening up to her about me. However when he showed her a photo, she immediately said “oh no, she’s completely wrong for you”. 
He admitted that it got to him and that’s why he pulled away for a couple of weeks.
I’m upset because I’ve never met her and am wondering why she would have been so negative about me.
Why would she have said that?