When she comes into town, she doesn’t exactly force her way physically into your house, right? Then it’s your choice to let her into your home. She obviously needs to understand that your home is your castle, and you are the queen. It’s your rules, or she’ll have to find some other place to stay while in town.
If that sounds harsh, please understand where I’m coming from. My own mom had a very difficult time in the last several years, and for the last three or four of those years, she was handling her life in a way that I strongly disapproved of. One example was that she was frequently asking to borrow money from me, since she never seemed to grasp the concept of managing her own personal finances. This was during the time that I was your stereotypical starving college student and didn’t have much money to spare. Despite having a very limited budget, I did loan her money from time to time, but when I figured out that getting that money back was harder than hell, and loaning money to her in the first place was only a band-aid to the situation and not a solution, I told her that I was no longer going to loan her money. Ever. Period.
She tested me on this a couple of more times, and when she figured out I wasn’t bluffing, she stopped asking.
Eventually the situation was getting so out of hand that my brother and I had to lay down a few ultimatums last spring. We had to do this in order to prevent the financial destruction of other individuals who were diverting a significant portion of their resources to subsidizing my mom’s decision not to be responsible for her own finances. By that time, Mom was pretty aware of the idea that we didn’t bluff and we didn’t fuck around with making empty statements. We were firm and yet non-confrontational. We never yelled during that conversation, and did our level best to keep a cool head at all times.
Lo and behold, her life has improved dramatically since. She’s made more progress in the last six months than in all of the last four or five years combined. She’s truly on her way to getting her life back together, and I’m proud of her for that.
But I don’t think it would have happened if it wasn’t for my brother and I being absolutely firm with her. An outsider might have seen us as being unduly harsh…we saw it as our last ditch effort to help someone (and indirectly help the finances of some other individuals that were being adversely affected by this situation). We set down some ground rules, identified the consequences, and made it absolutely clear that we weren’t fucking kidding. She believed us, because we backed up our words with actions in the past.
So. Before she comes to visit again, lay down the rules in writing. Be firm, but not hostile. Be prepared to stick to whatever consequences may happen, no matter what. It’s your son, after all, not hers.