Very strange and possibly complex problem: Macbook (A1342) Trackpad starts acting strangely after typing something on keyboard

A few things you need to understand first:
1) My macbook keyboard does not work.

2) Upon reboot, the trackpad works fine.

3) Then, as soon as I try typing something on the macbook keyboard, the trackpad starts to register every single click as a two-finger (right-click).

4) Then, immediately after I push a key down on the bluetooth keyboard, the trackpad starts doing the double-click thing again.

Here's another strange thing. This issue arose a few weeks ago, then suddenly disappeared without me doing anything. I mean, the trackpad AND macbook keyboard were both working flawlessly. After about a week, this reappeared again, and my macbook keyboard stopped working, with the exception of like, 1 key.I have no idea what this could possibly be. Advice appreciated, though I'm not sure anyone here would have any clue what this could be.