Love and sex

So I had having relations with this guy who is no longer with his girlfriend of two years,(She broke up with him about three months ago). I've known him for 8 years and had a crush on him for those 8 years. And now that went hanging out n u know doing other things. He doesn't want a relationship right now cuz he just got out of one. How do I stop myself from falling for him? 🙁😕