Headlights come on when the car is off

What is your question?

I've been dealing with this problem for months. When I park my car and walk away, the headlights will be off. At some point after that, my headlights will turn on and if I don't catch it, I'll return to a dead battery. When this happens, the only way to get the headlights to turn off is to open the hood and remove the fuses for the lights. This almost exclusively happens when it's raining. I have a 2003 GMC Envoy XL.

What makes this problem better or worse?

Rain

How long has your 2003 GMC Envoy XL had this problem?

6 months