Lesson Needed

So I decided yesterday I need a lesson in tolerance. Tolerating my mother. While I know this sounds completely horrid, it's the truth. I find that ever since Kyle left that I am even more obligated to do stuff with her. Yes, this makes me a horrible person to even be thinking this. I'm the only one she has stuff to do things with. So when she asks me to do something I feel like I HAVE to. Otherwise she will do nothing. She sucks at asking her few friends to do anything, feels like they have their own families and friends to do things with. (Mom if you never ask they won't do anything with you) Yesterday was Mother's Day and I felt like I needed to be with her all day. Sure, I really had nothing else to do, but it was the fact that I am the only child in town and it's a day to be with your mother, who does / has done so much for you, and here I am feeling irritated. Yes I love my mother but being with her for prolonged periods of time can be too much. She always seems to be upset or down and after awhile it takes a toll on me.

I feel like an ungrateful horrible child to be thinking / feeling this way. Any advice or suggestions? After all it's my mother we're talking about and she's the one who put me here.....