I can tell you from experience the best thing to do is NOT take her back immediately.
My ex and I used to breakup semi annually. She would go off and do her thing. I would go off and do mine. And eventually she would come back, whether after a few days or a week. She would
always be the one to reach out and attempt to reconcile. From my initial perspective I believed that this therefore gave me the power. It was an
illusion. Let me explain why.
She breaks up with you. She goes off and does her own thing. We know women
cannot stand to be alone and you already admitted she was on tinder
within days of the breakup. If she was truly heartbroken I would bet my house on the fact she has slept with at least one person to attempt to fill the void (a capital offence as far as relationships are concerned).
Now if you get back with her under these conditions what does this communicate to her.
1. She can break up with you and do what she wants during the "breakup"
2. As long as she comes across as "sorry" you will eventually take her back
That communicates to her that
she can have you whenever she wants you and if you take her back now I guarantee she will dump you again and pull the same bait and switch where she goes off for a week to wh*re herself out, only to return to the familiar. I did not have this realisation until very recently, but the reality is that is how they think and this was the pattern of my ex's behaviour.
The only way you can nip this in the bud permanently is if you make them believe that
they have lost you for good. There have to be lasting consequences. She has to truly believe that you have no intention of getting back with her. You say you were a d*ck during the relationship and serially unfaithful. Well so was I. And I would not take back my ex immediately under similar conditions for the reasons above.
I would recommend you:
- Don't respond. Let that anxiety build up. If she is serious she will come and see you. I doubt she has forgotten where you live in the last 3 weeks.
- At the point when (and I believe she eventually will) she comes to your home pull the same garbage these women do - "I need more time", "I'm not sure about this anymore", "I see things differently", etc, etc. She should come away from that conversation believing it's game over. That she has missed out on a good thing due to her own impulsive behaviour. Her fear of loss will go through the roof and if she cared about you at all she will experience the true pain and emotional turmoil that you have had to deal with these past few weeks
- Wait at least a month and then give her a call to reconcile - she will feel like she won the lottery. Then you will have yourself a gf who truly values the relationship going forward. Plus it gives you time to fix yourself and work on your own issues