worst situation to be in. please help me

alright so i met this guy a few times. he is great, he makes me feel comfortable, im usually a very nervous person but i was so easily able to be sexual with him and it was just like so perfect. we had sex, but we aren't bf and gf (ik im stupid). he took my virginity the day before he left for college a few hours away. he's been texting me every few hours saying he misses me and stuff, asking how i am. he knows i'm probably in shock. he wants me to come visit some weekend. he didn't want to become exclusive because he wants to see how we handle the distance but every day i feel so miserable thinking he could be getting with other girls and it's torture for me bc i really do like him. what should i do? i don't want to be clingy cuz he hasn't done anything really wrong. i wanna talk to him on the phone but i don't wanna b a bother. i shouldn't of had sex with him.... i should of waited. now i don't know if he's texting me because he feels bad or actually likes me. it really really feels like shit. should i ignore him for a couple days? please please please help me.