So sorry for the loss of your sister. How wonderful your thoughts of her can live on whenever you use one of her pieces of material. I think there is a difference between being a loner, and being lonesome.
Personally, I am social when I want to be, but on my free time I like to read, sew and garden. If doing what I like to do makes me a loner, so be it. I raised my kids, took care of my parents, spend time with my grandkids when I can, am willing to lend a hand whenever needed, but my time is now my own, and I love it.
The world needs lot of different people. enjpy being who you want to be. M