10 pts! why wont ex leave me alone?

my ex and i broke up months ago. the issue: i had trust issues and got on his nerves and he broke up with me.(side note: i moved to college 1.5 hrs away..he is graduating from my old hs). He has issues with the long distance b/c he wants me there with him. Okay, so i go months w/o contact and im dating another guy. he texts me during x mas about how much he misses me and still loves me. He always texts me 'hey'. and he never stops!!! He always asks me what im doing and wants to to talk to me all the time. so im single now, and i went out on a date with another guy. he texts me the next night and is like hey and is complaining about how he hates ppl and he is just in a bad mood. and then he is like i wanna be with you when you are here or when i come therein the fall.. and then he says..idk..and he is all over the place and is jumpy and nervous..whats up with this guy????