Your image is a big part of this. If you've been raising a lot and it's looking like a typical blind steal, SB will give you a lot less credit for a real hand.

The flop is pretty useless and your reraise could mean nothing since it's HU (this goes back to your image).

TT JJ QQ are very likely here. Hell, even 88 or 77 could be in play here.

More times then not I don't fear AA here and call the shove.