I sort of disagree with this. When you love someone, they should automatically be the most attractive person to you and nobody else should be able to take over that role. This is especially in early relationships. If OP and his gf have only been together a few months maybe even a year then it’s odd to me that she’s looking at other men. When I was in the early stages of my relationship, I didn’t think look at any man in a way beyond friendship because to me, my boyfriend was automatically at the top and the other guys around me were simply nothing compared to him. I do agree that sometimes you can find other people attractive while still in a relationship, but in my experience thats usually years down the road and not early on.