I keep indulging myself in great art, and that's what fulfillment could be about, ultimately... but when I see how the male physique can develop... it's a different sort of feeling, but can still be artistic. And, so...
I'm not sure if I can truly be fulfilled unless I can be close to at least one person... the love that can develop (already experienced it once, so I suppose I'm a bit more certain due to that). Physiologically it seems it can lower hormones that negatively impact one's body too, so hey...
And I guess the point of having friends... and family of course, if the cosmos happens to randomly drop one in a sane situation... is so these sort of relationships can be modulated and not have all the eggs in one basket, per se. But, like many others here I can't seem to maintain friendships and I haven't been fortunate in the latter-mentioned randomness. And a single powerful relationship is more than enough... it certainly filled my 'gauge' of fulfillment first time around.
