Do you know me?

How well do you ever really know someone?
Sometimes it's odd to me that someone I've known for a very short time knows more about what I like and who I am than some one how has known me for 20 years.
How can that be? I've always wondered why that is? Is it only me that this happens to? I don't think it's because they care more about me that they know what I enjoy, like and listen too.
They just must not have any interest in knowing me, they just walk around thinking they do when they don't. This whole time have had it their mind what "I am". What a shame to know someone for that long and it really never came across their mind to get to know me. Maybe because they like their " idea" of me rather than the reality.
No it's not my man I"m talking about. He usually knows what I'm going to do before I do and just how I'll respond.
What a strange relationship it is. I wish it were different but it's not. I'm willing to talk but the other party needs to want to listen but yet they really choose not to. If this was a relationship of choice it would be so easy to walk away but it's not that kind.
Acceptance with out resentment is the best choice I think.
So what makes you want to thake the time in getting to know someone?
I like blogs so I know more about people I've never face to face than this person knows about me.
Now that I"ve made no sense to some of you..........I know one thing for for sure I know me.