There it is the big question. I mean the only females he's close to is Mrs. Puff and Sandy. And he would rather get a little to friendly with Patrick and Squidward.
Here's an example remember when patric and spongebob found a baby clam they both agreed to take care of him and then spongebob told patric he was the mom! and patric the dad!
I'm suprised too felix. Well, the creator is gay, spongebob seems to do. . . .unsightly things with patrick (i use to watch when I was little). He also seems to be bipolar or neglegent. I say yes. Spongebob is pretty screwed in the head though.
OR maybe a combination of both? As I said, the guy must have SOME metal disorders, considering that he can alter time/space and lives in his own little world. I also think, yeah, he's totally gay.