Is it normal that i grow-out of every friendship?

I've noticed a trend. I have always had good and smart friends. It's so sensational when you can spend your time with like-minded people...they make sense and help you grow. But, there's another devastating trend. The friendship is on a quest, a quest to stop due to silly reasons. I'm usually the only one who visits, calls, starts the text conversation....and so forth. When I don't visit for a while...they hardly ever visit or contact to know what's going on. When we do bump into each other (after some time), some of them greet and keep going, some of them feel guilty for not doing friendly stuff...so they give me a 'friendly hug'...and they're like "...and you've stopped being friends with me GrandChild, don't do that...and great seeing you:)" ...but eventually, everyone stops pitching. The vulnerability and strong heart-connection I had with these guys...allays and gets smaller and smaller till I have the same kinda feeling I have for a stranger for them. Sometimes I think I'm more friends to them than they are to me. The real problem is that I'm alone and lonely...and getting used to it. I fear starting new friendships cos I already know how it's going to end; it bloody hurts.