I don't know what to do: Boy Probs

So me and my boyfriend broke up about a month or so ago and I've always had a crush on my neighbor and so recently I've been trying to move on from my boyfriend because I've been miserable and I may or may not have slept with my neighbor and it was so weird. He couldn't keep it in! Then he walked me home and gave me a hug. Now I have to see him since our moms are best friends and he acts so weird. I still kind of like him but he just ignored me the whole time and didn't even look at me. He can be kind of shy because it took him forever to kiss me but idk if it's that or that he's embarrassed or if he just wanted the sex and that's it. Should I just move on and not pursue anything further with him?