Someone really with good Facebook help me please! Is my ex stalking me?

[Hey]

Someone made a fake Facebook under my ex boyfriend's name. I know it's not him, why would he make another facebook putting his real name just to stalk me right? He could have put a fake name if that was the case.
We broke up about 3 months ago and he blocked me the day of the breakup. (We have had ZERO contact)
No one in the United States has the name he has only him so it's someone that knows him or us. My profile is private but I have a few pictures public and on my privacy settings no one can search me except my friends.
Note: me and my ex have no common friends and I liked all of his public pictures when we were together. We were each others first and we dated for a year. He broke up with me.
Could it be him? Or someone else that knows us pretty well? And what are their intentions?
Also, 4 days after I saw the Facebook under his name which was made that same day someone sent me friend request with a fake name and profile picture with no friends and no posts. Who is it? Is it him? Or am I going crazy? Thanks!!

[William]

Get off facebook then -_____-

[MAUDE STONER]

You are driving yourself insane. block him again