Hi. I have 2 rabbits, 3 yrs old,, who are sisters and have been living with each other in a hutch their entire lives with no problems until now. All of the sudden within the past month, one rabbit is mounting and biting the fur out of the other rabbit’s back. Sometimes the rabbit mounts and bites and other times, it seems like it’s just liking. The bald patch is getting bigger every week. What should I do? Should I separate the rabbits into separate cages or will that cause too much stress for them, who I thought were bonded. Thanks!