Okay, so I've got a predicament and I am not sure how to handle this... This girl- we'll call her "A"- I've known for off and on across my life (she was a friend of friends) and I have grown closer, and recently she admitted that I was "adorable" and wants to "finally get to know [me] after all these years". Shwueeeet. She likes anime, Scottish culture, gothic/industrial music, left-wing politics... fuck yeah she's awesome.

However, I have a problem: we have a mutual friend of ours who, unfortunately, suffers from schizophrenia. The thing is, my friend- we'll call him "H"- has been obsessed with A for YEARS. H is a very lonely guy (think your stereotypical pseudo-hikkikomori weeaboo) due to his illness and A has been the only woman who will usually bother to talk to him... and even though he's on medication and in psychotherapy now, he's still a little... off... and still obsessed with A.

I'm worried about how this might all go down: It's my business and her business if A and I want to get together, but I don't want our friend to go axe murderer on me and her! WTF should I do? How should I approach this?