NWSiaCB said: ... Or it was consensual, and the hostility is over the interruption
It doesn't work that way though. She'd have to have hit him already (mere intention can't change the indicator, or player killers would be found out beforehand), and that doesn't seem to have happened.
Perhaps it always goes orange for sexual acts unless the partners are married? That could get embarassing. Or maybe it can be turned off if agreed by both players, similar to how in duels players are allowed to hit each other.