What opening is this?

If you've read my other blogs you'd know that I often talk about a guy (his name is Ken) that I play with frequently over the board.  Ken used to play the Levistky attack or the Trompowski depending on what I did when he is white.  This used to be the opening he always did when playing me as white.  Over the years I've learned how to avoid the tactics he often employs when using that opening.  Eventually I got so bored with that opening I completed avoided playing that opening altogether and just opened with the Kings Indian, taking away his opportunity to double my pawns, which apparently was one thing he wanted to do in that opening.  Two other reasons why he uses that opening.  1.)  The black bishop would do nothing if he put it somewhere else, like lets say e7.  2.)  To get rid of my knight.  His whole strategy is based on getting rid of my defending knights.  I'll explain why...  If he is black he will try and plant one of his knights on a4, c4, f4, or h4.  Depending on where you castle and what you do, he will choose the appropriate square.  If you castle Kingside, it'll be either f4 or h4, queenside, a4, or c4.  His aim is to attack the pawn in front of my king with his knight and later on overload that pawn with other pieces, like the queen, or one of his rooks.  If I choose to move that pawn up he will try for some fancy knight movements or later try and weaken my pawn chain by forcing me to move my wing pawn up twice, then taking it out with a rook due to a discovery with the other rook.  However, a lot of times he plants one of his knights on a4 regardless of what I do.  And when I castle the otherside (king side) he will move it around the board.  I have no idea why he does it.  Maybe he is trying to buy some time by making a pointless move, no idea why he favors a knight at the edge of the board rather than the center either, that I will never know.  All I know is he likes to move his knights around a lot, trying to either provoke pawn weakness', an early castle of the king to either queenside of kingside, or to just gain an outpost at a part of the board he could not have reached the normal way.  The downside of this strategy is this:  His attacks are easy to spot, and if you find them and defend against them, he will gain nothing and lose a lot of time moving his knights because of it.  But I'm not going to talk about that in this game.  This game is an opening I have no name for, nor do I know what the name of this opening is.  I just tried googling the moves and found nothing.  What this opening is actually is the Levitsky attack, but with black...  So I do not know what one would call it...  This guy Ken likes to experiment with different openings.  For awhile he tried really stupid openings, to which I punished him for.  Now he likes to stick with a couple "good ones."  This is one of them.

Often times the games we play do not really involve much pawn structure decisions, but rather, just the blind trading of pieces while hoping we come out better at the end.  That is what I want to change.  I know he is making strategical mistakes by trading his bishop for my knight early (in this game it happened by force but a lot of times he chooses to lose his bishop for a knight).  I am going to find out why grand masters say that is a bad idea, and learn how to exploit the power of the bishop pair!  But first things first, I need to read my pawn structure chess book!  and brush up on my tactics!

Over all I think this is a terrible opening for black, but who knows, maybe someone can enlighten me?