I have felt like that most of my life actually. When I was little not even the kids in my special- ed class wanted anything to do with me. My family didn't either...I was special, developmentally delayed, stupid, and a just and expensive burden to them.....
When I was a bit older and hit puberty, and grew breasts the only people that wanted anything o do with me were boys....and the girls all ostracized me and made fun of me. As a teenager I hung out with drug addicts and junkies.....they were too stoned or high to realize they didn't want anything to do with me and I was actually okay with that....
When I got older and entered the workforce I soon found out that no one wanted anything to do with me. I was hated by my coworkers and I don't know why. I never did anything to them. I tried to engage in small talk....though I opted to keep my mouth shut if I had something to say most of the time....because I knew from experience I often offend people without meaning to. Maybe they saw me as aloof, or stuck up....I tried to be polite, I said "good morning" and "good night" and stuff.....maybe it was because I was a very young college graduate and I was viewed as a child still....and annoying little child....
Even now, I'm not that young anymore, but still the youngest in my group....and I am still the least important chemist in my group. Every one's projects are more important than my own....every one's voice is louder than mine. I feel like I can't even approach my boss to have her evaluate the status of one of my projects, and when I manage to I am ignored....I feel like an annoyance to her and all of my coworkers....and to everyone around me....I'm sure my coworkers would be happy to see me go....
Even in a store waiting to be helped by a sales person....I'm often completely ignored, and the next customer is taken care of....it's like I'm invisible.....it's like "if we ignore her...maybe she'll go away"
Even my fiance seems to feel this way.... I'll show up at his house and I'm greeted with..."oh...you again....why don't you just go home...I'm not in the mood for you."
So yeah....it's sort of the story of my life.....I think if I died...no one would even notice....