Have I wasted a year and a half?

I started dating this guy moved to a different state to be with him. I accepted his daughter bought her clothes, toys, food, and holiday presents. He has since day one took everything I have given. And in return I get yelled at, never thanked, and cheated on. I try to leave, and before you say I fall for the sorry a. I pack, his mom keeps trying to fix it and work starts their crap I get stuck. The last straw is a few days ago I had abortion to save both are asses, because he doesn't need another kid he can't support, and I support to much to add another. So once again spared his baby mothers feelings over mine, keeps playing with a girl who has a crush on him, and a 16 year old who won't leave him alone ( his words not mine). I pissed he won't get a job, won't finish his schooling, or take care of his daughter. But all I get told is I'm good for him, what about me I'm done with his ass since feb. I just....I'm confused I put so much and get nothing.