My questions at the moment.
What will you people do if your partner cries about his ex after a few months or years of your successful relationship? What will you do if he keeps her memories only to cry about it in front of you?
What will you do if your partner spends some time with his/ her ex without your knowledge?
What will you do if your partner said he had a soft corner for his ex and justifies that as a reason to cross the boundary despite being in a relationship?
What will you do if he broke the promise he made for you when he was with his ex?
Forgive and cuddle him?