Boys need help!!

Ok I've been talking to this guy on snapchat for ages but he gets really jealous easily and he always wants to me but I have never met up with him yet and last Tuesday I had my best friends debs I was going to. My best friend is a girl and when I told him he got really jealous and annoyed at me because I was going and there was going to be other lads here and he was so annoyed at me he said he would talk to me later. I was annoyed. So when I was at the debs at dinner I was sitting beside a guy and we started talking and just being friendly and after dinner went to the nightclub the hotel has and we were talking and I shifted him a few time and I really like him he added me on Facebook and we have been talking since then and no I don't no what to do I really need advice