How do you deal with having a very attractive partner?

My girlfriend is very attractive. I know she gets hit on a lot, almost daily. But it makes me very uncomfortable knowing that every time she goes out (clubbing for example) she will get hit on by random dudes. Or whenever I’m walking with her I will notice random creeps checking her butt out. She is very open with me (which is good) and tells me about her random day to day endeavors, so whenever she tells me about how this random barista started hitting on her, I get uncomfortable. I don’t want to feel this way, I don’t want to feel uncomfortable just listening to her daily life stories, or whenever she goes out with her friends, or at a pool when she wears a bikini.