The one like on the “bitches” is from the OP.
Because you know, breaking up with your girlfriend is a totally valid excuse for calling all women a slur. Say hello to my little unfriend button. Thank goodness he’s only a distant relative.
I don’t presume to know their situation but do you know explicitly why they broke up? For example, if your partner cheated on you and the person who commented with the slur knew, you’d still defend them?