Lack of appreciation?

All my life, any of the friends I've ever had never really appreciated me. That is, it would almost seem that if I was no longer there, it wouldn't bother them in the least. They could go on without me, and it would be like I never existed in their group in the first place. My friends don't tell me I'm a great friend or compliment anything I do. Sure, they'll say thank you if I do something for them, but they never stop asking. It's always me who has to hold something for them, or pick up after them and I'm sick of it. I just have no backbone to tell them when I'm annoyed with them. And it always feels like it's me against them. They'll have some common understanding about something, and I'll be like, what does that mean? They'll talk about what they love or plan something around it (eg. types of music) and I'll feel left out because I don't really share their interests. They all have similar likes and dislikes (food, movies, clothes, music, etc.) and I often don't care for it.