Good luck to you both, hope you find happiness in the future, together or apart

Noooo, my point is in the future share that part of yourself with your partner.

And I totally get the feeling like you will be alone forever, but hopefully time will pass and you will have more chances. It will be up to you to take one of those chances

If she accepted you as no one had, I am certain she would have welcomed the dirty texts.

No more excuses, own your mistake and actually learn from it this time

But is he monogamous? Either way sounds like he was a dick and you did nothing wrong

Did he specifically say he cheated? Or was he possible in a non monogamous relationship?

Either way he was a dick for not communicating all that with you, informed consent and all