What was the name of the big foreign bunny in love with Bugs Bunny?

I think it was a Valentine's Day special. I vaguely remember, but I think the plot had something to do with Elmer Fudd importing the giant bunny to seduce (?) Bugs in order to capture him or something like that. I think the bunny spoke with a Hungarian or Russian accent. If anyone remembers this, I'd greatly appreciate it.