Hey, thought I'd throw in 2 cents here too. Hope it doesn't just confuse things
I got from this a slightly different picture- if H has set boundaries with his friend, did he break it by mentioning your name, or was he bringing you up for a purpose (to signal that boundary?)
Have you thought about what your definition of his "showing interest" in you would be? Have you communicated to him (tricky, I know)? The fact that he even mentioned it could be interest.
It's funny, the many ways this could all be taken is a good example of how perception is such a dangerous thing. I know the more resentful I become, the easier it is for me to take everything H does in a bad light. How much is our responsibility to fix and how much should they help us with?? It's frustrating isn't it?
And I think about this a lot: the duality of our S's when communicating with us and with the OP. What part of them is real and what do they really feel? It's so hard to tell.