So I have two 4 year old female dogs one is mostly pitbull the other is partially pitbull and recently one (B) has been getting aggressive with the other one (M). It started about 4-5 weeks ago where B would attack M randomly in the house when she’d go upstairs and now she does it any chance she gets whenever theyre in close proximity. Something important is that B has always shown dominant behavior whereas M is super submissive so there hasnt ever been any issues. Im talking to a trainer now and should have some advice from them soon but im wondering if anyone else has been in a similar situation