Desperate for insight!! Help. Honest answers please!?

About 5mths ago, my ex and his grl had a bad break up. She broke up with him for whatever reason. He then consulted in me, which i have been his gf before but he cheated on me because he thought i was cheating on me..and half way through our relationship he left me for his bby mother. He said he was depressed durin the time. Anyways our initial plans were to meet up at dennys n talk, but i ended up gettin a room n we ended up havin . He tol his grl that he regretted wht he did, n he was sorry, that he is n love with her n wants to marry her.He is now livin with her n plans to marry soon. Could he really love her? Where do i stand? Does he think that I am better than his new girl?