Hmm, I said I had no plausible guess, and then my guess turned out to be correct. I should have expressed myself in a manner that doesn't require bending the laws of reality to my will.

Affiliation is a catch-all for being loved, liked, accepted, supported, understood, empathized with, etc. Bonding.

I think I would have gotten the idea immediately if you had said "Friendship", "Companionship", or something similar. Likewise, Stimulation could be called "Excitement". Does "Status, Excitement, Companionship, Safety" make a good acronym? :)