9months together and out of no where he breaks ties, calls me a loser, and acts like I am nothing after giving all my support and never betraying him. However, he stays friends with his ex who cheated, stole, and lied. Why?

Only he knows why,however if people treat us like rubbish,the best policy is to ignore them-forever.

See it as a lucky escape,you deserve better.

As painful as the situation is, you are better off without him, and should care less as to why he remained friends with his ex. Only he knows why he does odd things.

Suggestions on Why: He likes to be let down. He's afraid to commit.

Because he is an idiot that you gave your heart to. That's his problem, don't make it yours.

Does it really matter why? If he is willing to treat you like that for WHATEVER reason, is he really worth getting all worked up about? Go find someone who not only wants to be with you but who is also going to show you the respect you deserve.

Good luck,
Javi