Is this true or what?

[RaNdOm]

I have a friend, who asked me if I wanted his fb password. I was like, sure.
I got it, I logged in it with both my laptop and phone.
After that, my friend told me that he put a "virus/bug" in both of my devices when I accessed his facebook account. Is that possible? Can he see what I'm doing?
If he can, how can I get rid of the virus/bug?
Please let me know, Thank you x

[Allison]

He's bluffing, there is no way someone can get a virus by logging onto a Facebook. Because if he were to log on, then he would get it too!

[Denn]

If its over the main website Facebook.com what he is saying is bs. If you mess with his account he can see what your doing or if it was a fake Facebook site he might have gotten a virus on your device but you should be fine. He's probably just pretending he's cool and thinks he can code. Ignore it.