BrandyGran understand exactly where you are coming from. When you are the person who has to forge a friendship you start wondering why the other person doesn't ever instigate communication?
I once had a fabulous friend and we spent lots of happy times together. I looked after her dogs whenever she went away, house sat when she went to Canada. We went out often but all when I organised it. She was a massive person in my life but over the years I started noticing she only ever responded to my texts/emails, never contacted first and wondered what would happen if I didn't contact her? So, I didn't and ..she didn't. I thought well surely if she thought of me as I thought of her, she would contact even just to wonder where/how I was? No, she didn't. I thought that maybe she just didn't think so much of our friendship as I did so let it go..
Years passed and recently met up with another friend of ours who had met up with her also and she said to her "I don't know what happened to Val, we used to be such great friends but she stopped contacting me!". I was speechless as I didn't know what stopped HER from contacting ME!
So bottom line is you never know why people don't initiate contact. Sometimes though, you feel it is so one sided, you start to wonder if you are not really welcome? Maybe contact her and tell her how you feel? Which I didn't do.