Progressing into a long term thing
Emotional hurt
Ex did some scumbag shyt even though he's a corn
Ah okay.
The worst thing about getting hurt by someone in my experience is not that they hurt you but the feeling that you let them. That you failed as caretaker of yourself. You gave them the power, the status, the material sometimes. You invited them into your space. So I've been madder at myself long after I've forgotten the culprit.
Then it makes it harder to trust the next person and let your guard down again and invite another person into your personal space because if you were so sure last time, what makes this round any different?
It's hard to get serious in a relationship when you feel like your judgement has let you down in the past.
So I would say it's not all about your reassurance. It's also about her confidence in herself to (a) make the call to let you in and (b) to know that even if this relationship doesn't work out she'll survive the fall out, that she'll forgive herself and put herself back together again. She's not a fragile cracked glass that she's holding together. When she starts to feel like she's made of tougher stock that you won't be the end of her and that she can in fact live without you then she can let you in without reservation or ring fencing.
Or maybe it has nothing to do with the above and she just likes to hear compliments from you.
You should talk to her.