I don't know what to do

Sa
Hey ladies; I've been with a guy for like a year and we were madly in love and I lost my virginity to him; we broke up because it was hard to be in a long distance relationship but we still talk.
Now some guy asked me to be with him but everytime he talks about sex I feel guilty and I feel like I'm cheating on my ex, what should I fucking do. 😭