Have this ever happen to you?

Have you ever been in a situation,
that you are good friend on this 2 different gender person.
Then one day they two get together.
And you realise you are way too close with the girl that you actually tried to avoid her?

This happen to me not only once, twice, but many many times.

You did that because you knew the guy won't like it.

But in the end you get blame for everything, =x
It's not that I want it to be this way.

But I guess the only way is, to be the bad guy, for the best interest of all =)