Is it normal to wish you had better friends?

I mean i love my friends, they're really great. But sometimes they make me feel bad about myself and i can hate them for it, i get really depressed and lonely and sometimes when i wanna hang out with them they're either busy, ill or at a different friends house. I don't mind them having other friends but i wish i can have someone to be with. There's these group of boys and girls that i know who are really friendly and polite to me and it makes me feel like i want to get to know them more but some of the boys there who don't really like me that much and they take the mickey out of me if i talk to one of their friends, ESPECIALLY if they're a guy.
Anyway the point of this question is, is it normal to wish you could be with one group of friends and leave the other or just have both but hang out with one of them more? cause i really like the other group!