Should I text him or wait....?

So me and this guy had a great convo in class one day and then I fb chatted with him 2 times and it was fun (and a little flirty/teasing). But I always started the convo and he ended them. I texted him a funny text and he responded we sent back and forth like only 2 messages then I said "You're waay to happy bout that =p K I g2g, text me later :) " and he responded with "No, you can text me :p kk bye bye! " .... .Now I have no clue what to do, should I text him back and what would I say............??? I like him but have no clue if he likes me