<human>: Give me the gist of the text in a nutshell

First post here. A couple of days ago my gf (20) told me (19) she does not want to have sex anymore, because it makes her feel guilty of sinning...for fornicating. She has never been this religious and we've had plenty of sex throughout the year that we've been dating. But she's telling me she wants to reestablish her values with God. I told her it's ok and that I'll support her decision, but deep down I know I will regret telling her this. I fear that eventually this will build resentment towards her and that I'll seek other ways to relieve myself. I would never cheat on her but I'm afraid of losing that physical intimacy, which would result in wanting to leave her. I won't lie either the sex is amazing, so without a doubt I will miss it. I'm trying to be understanding, but it just doesn't make sense to me why she's barely telling me this now. She says that if I really love her I can wait. I do love her but what if i can't wait.
<bot>: SO doesn't want to have sex anymore because of religious reasons. Am I selfish for not wanting to put a hault to my sex life.