What to do if a female cat goes back to her original group? Have you ever seen this kind of cat-going phenomenon?
To address the anti-gregarious behavior in female cats, owners may need to distract the cat or find it a mate. Alternatively, owners can give the cat calming medications to alleviate the anti-gregarious behavior. Additionally, owners may need to supplement the cat's nutrition.
The mother cat's refusal to join the group requires distraction.
During a female cat's anticlub period, she will strongly desire a mate. If the owner doesn't want to find her a partner, they can try to distract her. If distraction doesn't work, or even triggers a stronger reaction, the owner should grant her request and find her a mate. If she successfully becomes pregnant, her anticlub symptoms will disappear. 
The mother cat needs to be fed and calmed down.
If the owner doesn't have the energy to care for a pregnant cat or kittens, then don't find them a mate. You can try giving them some calming medication. When feeding them, divide their food into portions according to their size and mix it into their regular food. The owner should keep the mother cat warm and prevent her from getting cold. Also, avoid feeding the mother cat frozen food, as this may cause her to catch a chill.
The mother cat needs extra nutrition after breaking out of the group.
During the recovery period, female cats need more nutritional support than usual, and owners can supplement their diet with appropriate nutrients. Offering chicken breast or beef as part of their daily meals is a good option. If financially feasible, their main food can be switched to canned cat food. Owners who wish to spay or neuter their cats should wait until the recovery period has ended to avoid potential severe bleeding.