When I was around you
I felt like I knew all.
What I didn't know, you taught me.
You showed me what it was like to be in love--
Especially the part where you left me.
Now I feel like I know nothing again.
I am lost.
When I was around you
I knew everything.
What I didn't know, you taught me.
You taught me what it was like to be in love; I think that these two lines (this one and the next) might be better executed if you added in another element, and transitioned to where they leave. Also, the semi-colon would work better as a comma.
Including the part where you left me."Including" feels a bit awkward to me. Maybe "As well as" instead?
Now I feel like I know nothing again.
I am lost.
What I didn't know, you taught me.
You taught me what it was like to be in love;
You taught me what it was like to be in love;
Including the part where you left me.