Dear ENFPs, my ESTJ sis needs your advice

Hello! (sorry for my English in advance)

(She is ESTJ, he is ENFP)

Let's call them like that.

Long story short, ESTJ (sis) and ENFP (M) started dating 4,5 years ago. During their relationship there were a couple of arguments that lead to their quite big pause 5 days ago. Mostly, as ENFP said, because of how harsh sometimes ESTJ was (controlling, trying to organise his life etc even tho she is a nice person). ENFP was very helpful, supportive but still too emotional. ENFP tried his best to talk to her that "time that lead to pause) but everything was like falling down.

I have also told her about MBTI and how it affects people so now she understands why ENFP wanted freedom and peace. She also understood her mistakes. They were such a nice couple but these mistakes lead to arguments.

ESTJ and ENFP still talk to each other. She really wants to be with ENFP again but he seems avoidant and sad, he doesn't believe that she can change but still loves her. They still do love each other a lot (they even met recently and both cried. Quote: "we were discussing our relationship, how we love each other but how confusing everything is) but ENFP looks like he is afraid. ESTJ tries her best to talk with ENFP but he only answers, he doesn't write to her first.

It has been only 5 days so I hope that everything can change :(

-How would you guys react to this situation?

-Would you allow your ex-partner to change and bring everything back?

-How should my sis talk to him?

Thank you in advance!