I like you

I like you. You are really sweet. When I am sad I will go and find you. You can make my sadness gone. I love your dark skin. I melt when I see you. You too, you will melt on my hand. I want to kiss you, then lick you again and again. Until you are in my tummy. "Mr, please give me one more chocolate ice cream ". (in the ice cream shop) You are my favorite, chocolate ice cream :3

Very clever. My first minor suggestion would be the one in green. To preserve the illusion that you are talking about a person, not ice cream, I would write it like that. You would not normally say 'I will get you' to a person. I also don't think you need to explicitly mention the man. I think it's clear enough without it.

You could also say "please give me chocolate ice cream once more"