For examples:
I ship Taylor Swift with Missy Franklin because they are both wonderful and I admire them both and I feel that the way Missy Franklin loves other girls could be good for T-Swizzle to be around.
I ship Ryan Lochte with Cullen Jones or Michael Phelps because he clearly loves them and they clearly love him. E.g


I ship Ryan Lochte with Captain America because it makes Anya happy and how adorable and puppy like they would be.
Even when I joke about shipping ~my enemies~it’s because I believe love would make them less unpleasant.
The point of this is that I want good things for people because I like them, or want better things for them.
I do not feel that way about Paul Ryan and Mitt Romney. I don’t want them to have happiness. Sorry but not sorry.