New potential partner drinks. Need SERIOUS advice.

Sorry for the long post!!!!!!!!

So I went on my annual holiday to seychelles my home country and I met someone. He knows my family well for years and he's very close with my grandma. Anyway I was there for 2 months this year June to August spending all our time together and I like him a lot. We kept in contact and Im back here now for Christmas for 4weeks. I plan to move here when I finish my studies next year. I'm not moving for him but because my family is there and I love my country.

However, he does drink every night! When he drinks he's a different person. He's NOT abusive or anything like that. He just doesn't listen to me and he always accuses me of having a boyfriend back here in England where I live. I repeatedly tell him I do NOT. He never listens. He always says I'm a coward for not kissing him in front of my grandmother and that I'm afraid of my own shadow. He says he wants to "make love" but I'm not ready for that he says that it's ok he will wait but I'm not sure. He says that he doesn't trust me but I've never given him any reason not to trust me. And I know trust is earned!

I know he's interested in me because when he's sober he's completely different. We have deep conversations, we talk about what we want future wise and just enjoying each others company. We take walks together, he will cook for me, help my grandmother all the time, he's such a lovely man!

BUT when he drinks he turns into someone I don't like. I've asked him to stop drinking or at least cut down drinking and he promises he will but then goes a buys drink and laughs about it.

Should I take him seriously or not?

Need help.

Please no nasty comment. Just honest advice.