Well, I think first off that you didn't break your ability to love. Secondly, you don't just conjure up those types of emotions, they happen without warning and on their own.

Otherwise, you didn't mention what your dx ended up being. But, in sz and bipolar and depression there is this symptom called anhedonia. It is basically a flattening of your ability to feel joyful types of emotions. You may still feel them, but they feel flat. It can come and go. I have more anhedonia when I'm more depressed. (That's what causes that loss if interest in things you normally enjoy in depression, for example.)

I think, you should just be patient and let your body and mind heal up. Psychosis is pretty hard on you even if you don't realize it. It leaves everything a little scrambled. I know it's cliche but it's like that old song says "you can't hurry love, you'll just have to wait."

Instead, just live and work toward wellness. That way when the right person comes along, then you'll be in a better place for a relationship.