Can I get back with my ex? Things are really complicated!?

Alright first off, I want legit answers, I don't want anyone telling me to just get over it or tell her how I feel. For about the past 3 months my ex has been going though hell! Her sister narrowly avoided jail time, her parents have been talking about divorce, she's behind in school and she has newly discovered health problems. 2 months ago, she'd been extremely depressed for a while and we agreed to break up because of all the stress, but we wanted to stay friends. A few weeks later, she starts going out with a friend from her school, she flaunts it more than her past relationships, and I thought it was initially just a rebound relationship, but the situations making it more intense, regardless he's still my total opposite. In those weeks we started fighting, I also got clingy because I was worried, but clingy none the less. Things I NEVER have done with girls! Firstly, I totally screwed up with the no-contact period, seeing as we IMed each other several minutes ago. We don't go to the same school but we go to the same church. At least it's not constant pestering and I'm, not begging for anything. I wouldn't be so worried about this if she was just a girlfriend, but I really love this girl but I know we can't be together right now. I'm willing to wait even years for things to get better between us (but I've already started seeing someone else just to get it off my mind). So, now that I've went on about how complicated my hearts making things, anyone willing to dish out some advice? I'd like to know how much time I should spend away from her now and how I should take things once that times over. Thank you so much!