Why is he now calling me? should i meet up with him?

It's just a booty call. He doesn't respect you, and isn't willing to compromise. Those things have not changed and you don't want to go back there. You CAN find someone who would never dream of putting you through that. Someone who will LISTEN when you have a problem and do their best to help fix it. This dude isn't the one you want. Seriously, it only took him a WEEK to get right back to doing what he knows hurts you? Surely you do understand that all those times he was MIA for a few days, he WAS doing what you feared the most? That's the only reason guys disappear for days and don't answer the phone. Stay away from that nightmare, please. Your future self thanks you.