My ex and I (we dated about 3 years ago), started hooking up once a week regularly back in September. Initially, I wasn't interested in anything more than hooking up. But because we started seeing each other weekly, and started talking more, my feelings for him changed. I started to feel like he felt the same way because outside of us hooking up, he would also snapchat me and try conversing with me. After contemplating if I should tell him that I want to start talking seriously again, I finally decided to tell him on snapchat. He said that we can start talking seriously. That was last week. Since then, we haven't hooked up, and we haven't really talked. He snapchats me here and there, and I'll snap him back, but we haven't actually talked. I plan on inviting him over soon and asking him if he really does want to talk seriously or if he just said that so we could continue hooking up (which I doubt because I never said that in order for us to continue hooking up, we have to be serious). I'm interested in him and I can't get him off my mind. I know that I should try messaging him first, but I'm scared of rejection. And I keep overthinking the whole thing, like what if he just said he wanted to talk seriously, but in reality, he doesn't? What should I do?