London is the eldest of the Not-Cats who founded the Secluded Haven. They are very protective of their younger friends (even if they are only about one season younger, that does not matter much to them),
They try to be the leading Not-Cat on here, which is okay with most of the others. Only Tiffan is giving them real trouble by not really listening and then doing whatever she wants instead of what the others agreed on, but London knows that she does this not to grieve them, but because she has been way too absorbed in her plans to really listen in.
This has made them very skilled at knowing what Tiffan wants and arranging it so that Tiffans plans and what London and the others decide match up as well as not-catly possible.

And slowly but surely, the ever-happy, always cheering Blush tiptoes his way into Londons thoughts - and their heart. Because why protect all this, if there is no special someone to protect it for?