Yes. Yes! YES! I love his scenes with Tuvok. I really loved the episode when Tuvok lost his memory. That was so beautifully done. And Homestead makes me cry it's so awesome. I felt like Tuvok truly grew fond of him and his ways. That episode was a thing of beauty just for capturing that.
I will admit I definitely teared up a little at the end of the Homestead. Riddles had a similar effect on me...considering he's lost his memory, all Tuvok really knows is what people are telling him, and most of them are telling him there's something wrong with him. Neelix is the only one who isn't making a fuss and is taking him as he is, no questions asked. No wonder Tuvok clings to him the way he does.