Gosh its hard because you dont want to be pushy but you want to be seen as helpful. I like what you did with the tires. Perhaps you let her know that you enjoy helping her and the boys out anytime. something that lets her know your their to support her and the boys and yet not be in her face.
I also think that her parents would see the good in the jesture and may become good allies for you. The more they see your changes , maybe the more they will encourage W to think carefully of future. Soooo maybe there could be oppotuniites to use her family indirectly of course.
