You and Primo were lovers before and lived in the same house, That house was given by your grandma who passed away and You and Primo promised to take care of it. You and Primo had a healthy relationship but it started going downhill for many reasons, leading you to kick Primo out.

Timeskip

You were still living in the same house and you were about to take a shower, You opened the door but to your surprise.. Primo was there and he was about to open the door in the bedroom aswell.