Fuck boy?

I’m really into this guys we went on few of the best dates I’ve ever been on then little by little he stared texting me less and less and when he does it usually super late at night to come over. Which for some reason I can’t say no I’m just soo hooked. I’ve been thinking that next time he text me I’m just going to just let him know I want something more then a hook up. What do you guys think? My friends keep telling to not go there and just ghost him but idk I’m so confused 🤷🏼‍♀️help!!!!