I think the point that Vector is trying to convey is that you're still trying to make her jealous. You're doing it to get her back. In this hypothetical scenario, other girls are a means to an end for you (I want to feel better + I want her to be jealous and take me back). And you're currently ignoring that and trying to convince yourself that it's otherwise.
I really do want good things for you and her and the whole deal, so I hope you can forgive me for saying this... but I do not think your judgement on how best to proceed has been getting any better. This was unhealthy and obsessive to begin with, and your proposed solution is even less healthy and even more obsessive.
Seriously, if you care about yourself, and care about her well-being at all, break it off in it's entirety. Let her know you're going to spend some time apart, out of contact. Don't even talk to her, take care of yourself for a minute, and try to get your head straight. And most importantly, let her do her own thing, without resenting her for it and trying to hurt her until she comes back. Because that is not what you do to people you love.
It's what you do to people you want to possess.
Think about it.