Peak,
Be careful. Avoid falling into the "favor" trap. She's on her own now. I keep hearing guys say that breaking contact helps to protect your feelings but one thing they fail to mention is that avoiding contact also prevents you from being used.
You have nothing to gain from keeping in touch with her or being her friend. Don't be surprised if she calls again asking for a favor. It starts small but if you give her an inch, she'll demand a mile and not only will she demand a mile, she'll also be ungrateful and simply expect it.
Your purpose for existing isn't to make her life easier and more convenient. Also, the idea of an ex being an ex is, you want this person out of your life. You're not proving anything to yourself or anyone by picking up the phone when someone calls that you want OUT of your life.
That's like me saying I'm going to prove my inner strength by picking up the phone every time an annoying telemarketer calls me. You didn't "get the upper hand". That's your ego talking. Stop giving mixed signals. You have to break contact completely. She's an ex. You DON'T have kids together. You DON'T want to be with her. She WON'T stop contacting you unless you put your foot down. And you WON'T put up with her sh!t.
You are NOT her man. You're NOT her chore boy. You're NOT there for her convenience. You're NOT to provide a reference for her for anything else in the future. YOU'RE HER EX. I'll say it again. Your her EX! EX! EX! EX! EX! EX! EX! EX!
Not her lover. Not her friend. You're not responsible for her well-being or quality of life. You're not responsible for handling her piddly sh*t or for making it easier for her to get a place. You're not responsible for the important things or the trivial things in her life. You're her EX. If you keep contact with her, she will start asking you for more favors. And if you start running the favor mill, she will let you do it INDEFINITELY. SHE won't put a stop to it. It will only stop when YOU put a stop to it.
Women like free labor. And they don't care if that free labor comes from their boyfriend, their husband, their exes, their male friends or the guys that hang around forever doing them favors hoping in vain that they'll get some action. Don't let her play you for a fool. Don't allow this to even get started. And don't be soft. It's time to plant your foot back down.