I am having friend trouble help!?

my "friends" have been really weird lately and i dont know about them. i was asking them why they had to go on IM once and all they said was god your nosey and they do it to me all the time, but then i got mad and just left. They have been making excuses to leave then they act like nothing is wrong later. Half of me feels like i wanna try and settle but most of the time i fell like i wanna punch them in their faces. pleaze help. i dont know what to do.