So Confused🤦🏾‍♀️

Nakia
Okay so this boy and I have been off and on for a while. Never officially dated just talking and having sex every now and then. He promised me 2017 is our year. And tells me he wants it to be me and him in the end has plans for me to have his kids, marriage, living happily every after, etc. Mind you I'm single but he act like I'm his. For example he spazzed on me for Hanging out with a guy friend and hates when I do certain things out of fear of me finding somebody else. Get this though. He has a girlfriend! Anytime I bring her up. He just tells me that it's me and him in the end and right now he's just doing stupid shit. Don't get me wrong I love the boy with all my heart. But I feel like I'm wasting my time waiting for him to have act right. Should I believe everything he says and just wait? Or just let it go cause he's just being a boy? 
Sorry this is so long. I'm just genuinely confused