advice on what to do

so i’ve been having sex frequently with a 20 year( im 16) and like i don’t know how to feel, he only hits me up when he wants to hook up and every time i’m like i’m not gonna text him but i always end up doing it. it’s just i like the cuddling at the end. like i even let him hit it raw. im always going to him, and he knows ima say yes when he asks me if i wanna hang out. i also lost my virginity too him and had my first kiss with him. i think that’s why i won’t let him go.