Search Results: come off as too needy

We met on a trip and we spent a lot of time together on the trip. I thought he generally liked me, because on the train home he would be looking round at me to see where I was and would come sit next to me and touch my arm etc. Anyway we added each other on Facebook and talked alittle bit on there. We added each other on snapchat and the convo just followed, anyway the convos got very flirty and he started asking me for pictures. Unfortunately I didn't refuse, I just sent him pictures I got off the internet. He would send me a picture and video. We decided to meet up for a bit of fun and we did. We have hooked up twice now and I noticed as soon as we hooked up the messages stopped. I did shoot myself in the foot by saying I don't want a relationship and he told me he didn't have time. Anyway now he won't even reply to my messages. I sent him a couple of snaps that I got short answers too. and today I sent him a text saying I can't meet this week, but can next week? and got no reply. Why is this? I find it odd because when we do meet we sit and talk for ages about what we've both been up to and how we have been. We're at the same uni as each other and he doesn't ignore me. He has actually told his friend about us. I don't wanna across and look needy, but I do quite like him now. Shall I just give up and move on, because he's not showing much interest at the moment?