Do I like him or not?!!! confused?

When we started to hang out a lot a few months ago I got erflies, felt shock when he touched me, thought about him alot. But when he went on vacation for 2 months and when he came back, I didn't get s chock when he touched me. I only feel erflies when he comes outside (we hang out outside) but after that, no erflies. I do flirt with him though, and think about him a lot. He's also in a lot of my dreams. creepy. Also, I am feeling a TINy crush developing. Is it possible to develop a crush slowly?