It's certainly not perfect, but life is far from perfect.

I do think that of all of you, I'm worried the most for Tonks. Because she deserves to be with someone who loves her back, loves her like you and Remus love one another, and although this set-up does provide her with support, and she does care for both of you very much and you for her, it's just not the same.

But from what I've seen, you three are doing the best you can with what you've been dealt, and I admire you all for it.