Ex troubles

So my ex and i dated for a year and we broke up 10 months ago. He was my first everything and now i'm 18 and he's in college while im a senior and thats part of why we broke up. Since we broke up, we've hooked up 3 or four times but just making out but last weekend i saw him at his frat's party and he was being super flirty when i had planned on ignoring him to avoid doing something i'd regret BUT my friend and i ended up back at their dorm that night and he was telling me he has missed me a lot, that it just feels right and having deep talks about how the break up hurt us both equally and we ended up having sex for the first time since we broke up and neither of us have slept with anyone else and before the sex he had asked me to sleepover but said "we dont have to hook up or do anything i just want to spend time with you" so i agreed and the next morning i took his shirt off and changed which woke him up and i pretty quickly got my friend and blasted out the door (i hugged him bye before leaving not just sneaking out) and we haven't texted or snapped at all since that morning so should i just leave it as is and not speak till we bump into each other again?