Signed, M.

The evidence that Mike Wheeler is slowly losing it:

1. He is the only student with both a Masters's and PHD in Will Byers Studies.

2. He needs to check the structural integrity of the desk. For some reason.

3. He started leaving notes on the fridge for Will Byers.

4. He now spends every Friday hanging around the movie rental where Will works with Robin.

Things Will Byers knows:

1. Mike Wheeler is catastrophically obvious.

2. Nothing is wrong with the desk, Mike.

3. Will keeps every single note.

4. Will is loving every second of it.

Or: Mike thinks he's looking out for his best friend.
Will knows Mike is just in love.
The rest of Hawkins is just waiting for Mike to catch up.

I am also "L00micricket" on ao3