you and five had been in a previous relationship with eachother, He was an amazing boyfriend but He'd lose his control say things he didn't mean, that's the reason you ended it.

you two were together on a mission but halfway through an argument started

Five: "are you forgetting you broke up with me?!"

You: "I broke up with you because I was made at you! Not because I stopped loving you!"

Five: he stopped yelling and looked at you stunned wha-?