I developed an ED because of my ex...Vent

I'm 20F and I've been struggling with binge eating since October; dealing with bulimia for about 2 months now. Long story short, last October, this guy and I ended things. I've had plenty of time to think things over by now and he's officially blocked/removed on everything. But when I look at my ED from the perspective of this past relationship, things started to make sense.

From August-October I lost almost 12 pounds. The last time we hung out he brought up to me that I looked "malnourished" and when I first heard that I didn't care. But ever since, I've been trying to chase that kind of attention from him. I gained all that weight back that I originally lost, started binging almost every day, and became bulimic. Partly because of my own unhappiness with my body but strangely in an effort to get his attention. Or to see if he'll offer me any support or concern once he saw how "sick" I looked. Idk, I'm on the road to recovery and really want to get out of this unhealthy cycle because even though I am over him ,I'm still struggling. Any advice or perspective on this?