I have two babies one male and one female. (female is 2 yrs, male is 6months.) they absolutely love eachother but he is growing very fast as he is almost the same size as her. he likes to wrestle a lot and she makes loud meows / groans & hisses at him sometimes. I think he may be playing too rough? because when he’s not doing that she loves to play & groom him. does anyone else have this problem? or knows a solution?