Opening my own car

Your position might be a bit more tenuous than hers.
You admit to hitting her with your car door.
Even if she forgets this nasty business, as I suggest you do, you might find her unwilling to renew your lease.
Incidents such as you describe are simply unacceptable for a myriad of reasons.
Neither of you are toddlers, and as adults you are expected to possess the social skills to engage in everyday differences without resorting to shouting or violence.
You also don't describe a legal issue, yet.
If you were to take the lady a nice card or a handwritten note of apology, and a small gift, things could be smoothed over.
Someone needs to make the first move, why not you?
Apologize, let it go, and live your life.
Goodness knows there are far more drastic and horrible events that can befall us everyday that make a slight disagreement between two acquaintances insignificant by contrast.

 

Agreed.
I would try to make amends with the landlord AND start looking for a new residence.
The bridge may be burned. Plan ahead.

 

I would think that after the first time you would have LOCKED your car doors and been done with it.

You need to both start acting like adults instead of babies.