The text message about gay men was a bit ambiguous, and his girlfriend saw it. What should I do? Do you need to explain to the girl?

You can see it when you see it. It's no big deal, as long as it doesn't continue. You said yourself, there is nothing between you, just a little better relationship. You don't need to explain to his girlfriend at all. This kind of thing is getting dark. You don't need or have the right to say anything to her. Let the boys explain to their girlfriends. In addition, I need to remind you that after all, boys have girlfriends, so it's best to consider the feelings of girlfriends and keep your distance from boys! If I have a boyfriend in the future, will it be the same?