Gamora and Melinda
“Yes, the tree. He wasn’t always so small and angry. When I first met him he was a full grown tree. But he sacrificed himself to save all of us on Xandar, when Ronan was trying to destroy everything with the Infinity Stone. He’s only grown back this far so far.”
But they put up with his crap out of gratitude, and, yes, love.
“I was on my own for a long time before I found Peter and the others. I hope I never am again.”