get your bunny spayed that is why she is being agressive not cuz she needs a companion i had 4 buns together and i got rid of all but one and shes not lonley..but she was agressive once you get them spayed they get better but you need to give it time , any more questions on why you should get ehr spayed pm i jave tons of info i had to cnvince my mum so i know alot about it and about buns in general