As you know my fwb made a post on Facebook using my other male friend name.
I showed it to the other guy to see what he thinks. One of my friends gave me their opinion on that. I want to know what others think.

Yes, I think it was a bad idea. Unless you thrive on drama, some things are better left alone, but now you dragged the other guy into this. This is all just a ticking time bomb about to explode.

The other guy and I are no longer intimate he is an old friend who lives 6 1/2 hours a way but his family still lives here. We just chat when we are bored we converse all the time. I was actually chatting with him the day I was with my fwb. How did I drag him because they don't even know each other? I'm just asking. What do you think could happen?

If you and guy #2 are no longer together, what motivated you to tell him about the FB post?

because it was his name that was mentioned in the post. He saw my text or messenger chat with him

I dont think you should have shown the post to the other guy. What was the point? It should not matter what others think.