What I Am Describing Happened When I Phoned My Mother Just Now

No, it doesn't matter now that they're coming home 2 1/2 months early.  And I can see that Mother is telling me not to worry about it, and that she can take care of it once they come home so I don't have to do it.  But she is old and doesn't completely understand English, so this payment that needs to be made is something I'll eventually have to do, and I wanted to do it this weekend while I have the time because I don't work.

There is one overriding disappointment when she rebuffed my wanting to pay these payments for her.  It's a chore, but it's something I wanted to do.  Instead, her wishes won out, even if those wishes are, essentially, "I'll do this responsibility, you don't have to do it."  Mother (and Father for that matter) minimizing what I want to do has been a cornerstone of the nature of our relationship, and as anodyne as this interaction seems, there is a burning rage inside of me over what she (albeit innocently) said, and right now I am as frustrated over how she made me feel after the phone call as I feel over needing to be careful of myself around the house again.  I can never quite be free from the parts of my relationship with Mother that I hate because it keeps rearing its damn ugly head.