I hate to be the bearer of such news, but it's true. Not everyone is thinking about you, looking at you, or wondering what you're doing. You aren't the first thing most people think of when they get up in the morning, and you aren't what they think of when they lay their heads down at night. It is true, to some people you may incredibly important and they may be thinking of you a lot. But most of us aren't.
I am sad to say that I had long suffered from this delusion of grandeur. Thinking that when people made decisions, they made them to either include me or hurt me. Not that it might not have happened for real sometimes. I remember being the kind of kid that always wanted to hang out with my older cousins. I am sure I got left behind a time or two because they wanted a break!
Let me give you an example of a way that I knew I had changed. A few weeks ago, my husband asked me what I thought of the new covered porch his dad had put on the house. I said, "What porch?!" He asked me if I'd looked at the pictures that dad sent out. I responded that I hadn't gotten the pictures. When my husband checked the message he found that dad had sent them out to all the kids/spouses but left me off. My husband immediately became worried (because I had him trained at this point) and said, "Are you mad?" And with all honesty and a completely untroubled spirit I was able to respond, "What for? He forgot. I can look at the pictures from your email." My husband looked at me like I had 2 heads and grew bat wings.
In the past, I would really have taken that as dad not liking me, or excluding me, or something. And then I would have used my hurt in that situation (and it was real hurt, even though it didn't come from a place that made any sense or that was true) to manipulate my husband for attention. Sad, sad, sad. But true. The fact is, my father-in-law, does like me. He cares about me like he cares about his kids and the other spouses and he's not out to make me miserable. That's a fact and I know it.
It was because my perception of my place in the universe has changed that I was able to just be okay. I understood that it was an oversight of not-even-worth-talking-about proportions, and could go about my day not thinking about who likes me and who's excluding me. I could stay in the present and enjoy what was going on.
Ask yourself honestly if you've ever felt this way. Have you ever felt that someone planned something and deliberately left you off, when it really may have been an oversight on their part? Ever felt bad if you didn't get a phone call when you wanted one? Ever been a part of drama because someone else felt this way? It doesn't feel good, does it? You know what, maybe someone wanted to have a dinner party with just a certain group. That's okay. We can sometimes develop this "everyone's out to get me" mentality and it just isn't true (and if it is, you need to think of gathering a new group of people to hang out with or check your own actions to see what you're doing to bring that kind of attitude around you).
The best way to overcome this kind of faulty thinking is put yourself in another person's shoes. Think of how it may have played out. Think of times when you've made mistakes and forgotten people. When you develop this trick of being able to understand how another may have made a decision, you learn to give grace.