It's late and I think too much

I often wonder if anyone thinks as much as I do about the things I do. I know one person who does, but he is the exception to a lot of things, including what and how much he thinks. 

What about everyone else?

Recently, I have decided to withdraw from all the one sided relationships in my life. Friends and family alike. From a young age, I have always put a lot of effort into all of my relationships. Some might say that I love hard. Looking back, this type of behavior has landed me in a lot of one-sided relationships with the opposite sex, family, and friends. I usually take people at face value and as much as I think about everything, I've always managed to overlook what was going on between the lines. 

I'll write and send a letter or email that doesn't get responded to, a call or text that doesn't get returned, or plans that never get accomplished. Folks insist they will get back and insist it's important to them, only to never be heard from again. Okay, that's a bit dramatic, they are not heard from on that subject, it's like it never happened.

Why can't people just say, "I'm done."?