Keelin is way to comfortable online and I don't doubt that her and her mam have had issues but I don't really think that was the case with the cat. Keelin got pregnant and expected to move herself, her fiancé, their cat and soon-to-be baby into her Mam's 3 bed semi-d where her two adult sisters live. When her Mam told her she wouldn't take the cat, Keelin shared screenshots of her Mam's texts saying not to bring that cat near her, basically shaming her online to guilt her into taking in the cat.
Personally I think she expects too much of her mam. She let K and J live there, sleeping on a pull out couch, until they found an apt. I don't see Jason's mam jumping to have them and their cat live with her?