My boyfriend is sleeping over his ex house. pt2

Did I make the right decision?
UPDATE: So, after I agreed to let him we were on FaceTime since I'm on my way back home..I asked him what time he was going to his ex house and he told me that they were not staying over her house anymore. I asked why and he said because he told them that he didn't want to anymore. 😂😂😂 So now, we good. I guess it's because he thought about how I actually felt and decided to make his final decision based on that.