sex vs feelings

so I have noticed that casual sex is easy for me but the thing is I never I mean never have feelings for someone once they seem like they like me

for example if I think I "like"( more like lust )a guy I will like them until they start liking me , I can fuck them but nothing more

I feel like I can have a sexual lust but not emotional connection

is this normal I want to feel that "warm fuzzy feeling" of love or like but I never have it