It turns me on when others like my girl

Me 21 and my girlfriend 20 have been dating for multiple years now, really good relationship overall. She was always cute but the last years she really had a glow up, started going to the gym a lot and just got a lot hotter overall. I wasn't the only one realizing tho. I can tell that the last year she's been getting hit on a lot more, at work, at the gym, at bars or just in the city. The last months she told me about a couple times she got hit on and I realized it actually turns me on. I love the fact that there are men out there wishing to be with my girl and finding her sexy.