What the actual fuck

Come on, man. We both know you're not supposed to offer to help her get off.

I think telling your mutual friends to "shut the fuck up" is acceptable here

I can see where they may have thought offering her a massage at your place was hitting on her, but I know it was purely platonic

Would you?

Well it seems now I now have feelings for my bestfriend who is a woman. FML

Just don't stay in the "friend zone" too long.

Ignore them. She's really lucky to have a good friend like you

Part if me says, Man! I have many lesbian friends! the other part says, I've been with a few of those friends. life's a tightrope.

Do you think she might have said something to them about it? If so, I'd say it's worth bringing it up with your friend and telling her where you're coming from in case she's misunderstanding. God knows when you're going through a break up your mind isn't necessarily working at full speed, and I'm sure if she's mistaking your kindness for opportunism she'll appreciate knowing she's wrong and that she can lean on you without fearing her vulnerability could be used against her. And if it's still an issue, then take solace in knowing you tried, that you were thoughtful and did your best to be a good friend.