How do i cope with this feeling in me?

how do i cope with this feeling inside me. there is this guy i have been talking to over the internet. yea yea whatever don't give me an internet predator lecture im not looking for that. i really liked him but i screwed things up. by accident i might add. i was on the phone with him and he told me to hold on so i picked up my ipod while i waited playing Solitaire when he got back on my ipod chimed with a notification. he asked what the noise was and i playfully said what noise. and he sed no seriously what was the noise so i told him my ex messaged me and he got all pissy calling me a lying ***** cuz i lied about the noise i cant stop thinking about him since late december right after christmas someone please help me i don't know what to do and idk what im feeling