Bit of background. She is a 2 years younger and married. I am divorced but in a good place with that, quite like being single really. Neither of us have dc.
We go out together quite a bit and I would say we are probably of equal attractiveness. I love her to absolute bits. When we go out she is quite flirty and doesn't always volunteer that she is married, which if fair enough, up to her. I just find though that if we ever start chatting to anyone, they always seem to prefer her. I will be doing fine until she joins in and then without fail attention will turn to her.
Me and a couple of mates went out a few nights out, just a quiet drink and I got talking to someone, he took my number and all was good, dsis arrived and it became clear he was more interested in her, he hasn't called me but has found her out on FB and messaged her.
Sadly this is not the first time this kind of thing has happened and it all feels a bit crap really.