It wasn't a poor move since like I said, I had no idea whether you nor Rummy was Mafia. Now we know a kill happened when you were both taken out. Suppose someone other than Rummy died, I'd now know 2 people were probably town.
Also threats against me won't work, since I can just do the same to you. Now your target is dead (Rummy), I would essentially roleblock you to infinity. :p