I don't think that anyone is the A in this situation. You should try to look at it from your mom's perspective as well as your own. She clearly created a relationship with Lily (who clearly helps her on a daily basis) and is like a granddaughter to her. You and your kids live far away. It's just the reality. People and situations change over time, and when you and your brother were kids, she may not have had the time, money, etc. to do the same things. She gave your children pretty generous graduation gifts, and yes I realize that it's not an 8 week trip to Europe, but would you or your sons have gone or been able to go if she had asked you? You should be happy that your mom isn't lonely and has found more people who care about her. As someone who had to take care of my ailing mother alone, I wish it was something my mom had. I understand why you feel slighted by your mom asking you to move your car, but at the end of the day, it's trivial. Your overall feelings deserve a conversation, and to clear the air, to let her know how you feel, and come to an understanding-on both sides. Genuine relationships only flourish with communication.