Men, who are extremely handsome, conventionally attractive and hot do you guys get approach by women for hookup without actually flirting with them?

The other day I found out that my boyfriend was a promiscuous in the past. I couldn't believe it because he is so shy and reserved. I asked how is it possible? So he said that he was very popular among the girls in his university, according to the girls he was conventionally very attractive, handsome and hot, that is why the girls used to aproach him for hookup. He never approached any girl, it was always the girls who approached him. I don't know if what my boyfriend is saying can be true or not. Can someone tell me is my boyfriend is right or not?