Looking for a good book, sci-fi and with human and robot relationship/friendship

I'm becoming too obsessed with this idea, in general. I would love any recommendations.

I DO NOT WANT SMUT/SPICY! Also, doesn't have to be a romance book, just anything that could fit what I'm asking for.

I would prefer the robot to not have a human like body because of what I pointed out before. I think a silly robot loving a human and knowing they aren't destined to be together is really angsty. If it has angst, then better!

Thank you.