It's certainly an interpretation that has occurred to me. I explained it here a few months back. i don't subscribe to it, but I think it's been made slightly too easy to come to that conclusion.

And I never really thought about the slash thing, I've never been much of a slasher, but that's hilariously true. Slash is all about interpreting little glances and body language and MAKING UP a relationship based on nothing more than a few ambiguous looks and remarks. You shouldn't have to go to that amount of trouble for a CANON ship. It's just weird.

I mentioned having them break up as being the only clean solution, but I got just a tad flamed for it. So I'm keeping quiet now. :/