What would you do in my shoes?

You need to go with your gut feeling. The fact that you are asking for advice tells me that you don't trust him. Please don't proceed because you feel sorry for him. How dare him say that if he doesn't see you in less than a week he will stop talking to you. That's a threat. Stay away from him and be more careful in the future. Like I said...don't let him make you feel sorry for him. That is what he is trying to do.