My Neighbor Drunkenly Tripped While She Was Leaving My Property And Sprained (possibly Broke) Her Ankle. Am I Liable? Tx

My neighbor came to visit my mom and I on Christmas morning. She showed up plastered drunk and even brought a bottle of fireball with her that she continued to take shots from. Despite this, we were still cordial and had lunch/ early Christmas dinner together. In the midst of my mom and I cleaning up in the kitchen, my neighbor was chilling on the couch when she suddenly decided to get up and leave randomly. By the time we noticed that she left, I heard her screaming outside and we rushed to help her back to her home and offered to call an ambulance for her. She refused and we got her to her couch so she could recover. She was still able to stand somehow (which is why I put "possibly broke" in the title.

She tripped over a flat surface (literally where the sidewalk meets the driveway of my house), there were no hazards on my property other than a single 2 inch step to my porch, but that's not where she fell. She refuses to even admit she was drunk and is blaming the wind and slight rain we had that morning.

Now, nearly 2 months later she is asking me for my information to put in a homeowners insurance claim for the incident because she has been out of work since that happened. I don't want to be an a-hole, but I feel like I shouldn't have my premiums go up because someone decided to be irresponsible with their drinking habits.

So my questions are:

Am I liable?

If so, does this affect my premiums?

What can I do to prevent this other than not have any guests over? Make everyone wear ankle protective safety boots?

Thanks in advance