I'm 20 years old and in university. To be brief, I don't have a problem talking to girls, or anyone for that matter. I can strike up conversations and ask them to hang out and such.

However, my problem is whenever I'm hanging out with girls any sexual desires just...fade. I never make a move because I just don't "want" to at that moment, and I can't explain it.

This has been an ongoing issue and I don't understand it. I just regress to "friend mode" when I'm 1-on-1 with women.

Can someone offer any sort of explanation?