I have 3 cats and each of the 3 is high maintenance. I love all 3 of them and I support all 3 of them. I pet them, give them treats, buy them toys and take them for medical care. Other than the obvious, they are no different than having 3 wives.
I agree with Aderleth, I'm no fan of marriage. However, I feel we should honor any and all commitments between consenting adults or adopted cats. A contract is a contract.