If he still wants you then he has no reason to search for another.
That is not going to inspire her to want to get back together with you.
Dialing my boyfriend while having sex with that guy I called my bf several time untill he picked up - he feel so humiliated about this.
WELL when the day came….
Best not to rush into anything, but explore whether this renewed communication can get some traction for what you both want.
And nothing feels better than regaining control and finally honoring my self-respect which, I truly believe, was there all along….
Usually he used to call me whenever he used to get time.
Either way that is totally new relationship and you have to start from a scratch.