Do Gemini men mention another boy who likes this girl to the girl they like?

Yes, and it is because I like you so much that I care about your attitude towards other boys who like you. He wants to make sure his position in your mind. I think if you have feelings for him, you should give him some hints so that the two sides can be together. Hehe, this is just a personal opinion. Most people are in front of the person they like, and they won't be the same as others at first.