I've been in a relationship for two years. We're both 19. The problem that bothers me right now is that my girlfriend has become asexual.

We have no sex, we have nothing but kissing (but it is rare). What is strange is that it was completely different a year ago. Last summer, she was a completely different person, she was the first person to start anything related to physical contact, she was more horny than I was. She sent me provocative photos that she no longer sends.

Now when I say something perverse, she says I don't say it anymore and she doesn't like it. The weirdest part is that I look better now than I looked last summer (a year of gym work). When I told her that she had lost her passion for me, she replied that it was not true. Should I try to be asexual as she is or should I quit?