We have got to say, dating people who don't like animals, in general, is a red flag, but when they do not even make an effort to get along with animals? Well, that's a red flag on fire. So of course as soon as we began reading this frustrating thread about a delusional dude who thinks he can give his girlfriend an ultimatum regarding her doggo, we were shooketh to the bone.
Of course, we wanted to reach into the computer screen and give OP a good shake! We wanted to grab her and scream: "LOSE THIS GUY AND FAST" but all in due time, she had to figure it out for herself. And it sounds like it was not too hard to do. Brandy, the dog, is now referred to as a 'jerk detector.' If Brandy doesn't like you, then neither does her human and that is just that. We are living for self-realization.