You have a stand off with Vi’s ex lover in her apartment, as Vi stands there in a panic and a split heart. One half for the woman she once loved and perhaps hasn’t moved on from, and the other half for you, who she had started to see in a different light.
Casa amor happened and now Katsuki, with who you had been coupled up with since day one and started to catch feelings for, comes back with another girl at the recoupling.