So, girls I had a breakup because of a joke?

So, what happened is in my 7 months long relationship my girlfriend and I decided to delete our dating apps in the first month only. And, then I noticed she is still in contact with her 3-4 Exs whom she talks on daily basis.

And, once when we were new in our relationship she told me that I can’t visit her for 3 days because she is going to a party and her sick grandmother is alone at home and her exs will stay at her house for 3 days and she will come home only to sleep but she said you don’t need to worry about anything and there’s nothing in between them. But, I refused to do that and told her to say no to her ex which she did but that incident make me insecure. And, a day a month before my breakup I saw that she still has those dating apps but the profile is snooze I asked her why she didn’t deleted the profile she said that she forget.

And, I trusted on her and then i noticed a change in her behaviour kind of I felt she wants to breakup with me but everything was fine till then. And, one day i played a joke on her and said I also went for one date after I saw she is using dating app and is still in contact with her ex. And, she said she don’t trust even though I trusted her and broke up with me. Note- I never contacted my ex while in relationship but she was in constant contact with her 3-4 exs.

What do you think is a joke enough reason for a breakup or there was something going on I didn’t knew about?
So, girls I had a breakup because of a joke?
Post Opinion