Would you keep the couch?

“A friend gave me his couch since he was going to be moving out of state with his girlfriend.
I’ve had it at my apartment for three weeks, and now he wants it back because he and his girlfriend broke up and he’s keeping his apartment.
I live on the third floor so it was a pain getting it up here and I love how it looks at my place.
Do I need to give the couch back or is it OK to keep it?”
What do you think?