i'll assume the "playmate" doesn't live with her ? how big is the playmate ? dogs that live together work that stuff out …… my kids knew never to get into the middle of a dog fight , I told them just let it go , any dog fight here when I wasn't around were equal sized dogs ….……… redirected aggression can be a really bad situation , it happens a lot , and it is something you don't want to let happen … not knowing your dog or ability , the safest thing is to let them settle down on their own , talk to them , stay calm , get their attention after they are calmer than "flipped" , go from there , your dog will not knowingly transfer to you , you need to know the dog is aware of you before you touch them ….. dogs can and do fight without being "flipped" , flipped dogs fatigue fast , fatigued dogs settle down and want out …… be aware of the dog on the bottom too ….... couple loop leashes are always handy , by the time you go get them they will be settled down ……… odds are they would have settled the situation if you hadn't intervened , as long as they are comparable sized dogs , one on one , it'd be relatively safe ……. most dogs will quit ……… don't be afraid of your dog , just don't get yourself in that situation , she's a puppy at 10 months , but imo , dogs that redirect /transfer are always capable of doing it again , it's there mentality , it's not aggression towards you , it's aggression towards the original target ………..