Please give me your opinion of this guy?

So we met on a messanger app on our phones and we realized we go to the same school (not anymore he has graduated). This was back in November and we talked every single day, all day. At the time I was struggling to get over a guy I loved for two years and he made it easier for me. We didn't talk for a month because we lost each others contacts and I instantly thought he didn't want to be friends because he got back with his ex. In January this year we became contacts again and the whole talking all day thing started again. In February we met up and he was really sweet to me, and we kissed, I then realized I really liked him. He told my friend he doesn't love his girlfriend because he likes me because he said I made him happy and I was really special. The thing is, he never told me he had a girlfriend and he kissed me. I asked him what he was gonna do, he told me he broke up with her but the relationship status never changed on facebook until March. We met up again in March and we got on well.

But during these months there was an odd few days or a week of not talking. Later on in April we stopped talking and only had a few short conversations which were meaningless. We ended up not talking until last week when he texted me. We talked for a week straight, we fall asleep during conversations and carry on the next day but that stopped about 3 days ago. It is summer now and we have more time to talk as his end of school exams are over. I understand that probably nothing will happen between us like becoming boyfriend and girlfriend. But what bothers me is these stages he goes through. I miss talking to him more and more. He was also the guy who got me over the guy I loved for 2 years which means a lot.

Should I just find another guy and forget about him or wait on?