I don't recommend that patients go off their meds without talking to their doctors first. If you see things are getting worse without it, and they seem to be, then I suggest you try it again.
I also recommend you talk to your therapist/doctor about what's happening to you right now. On top of everything else, you don't need your feelings toward your former boyfriend to mess up your future.
And you do have a future, even with your depression. It can be treated and you can get back to normal. Just work with your professionals and keep trying until you can get back on your feet.
Feel free to post in the depression forum, too, and let's see what any of them might have to say.