Since you say their behavior makes you angry (which is what you should feel), you need to reevaluate what you want from your friends and choose your friends accordingly. My advice: dump ... (EDIT: this assumes you have already tried talking to your friends about their behavior and have seen no improvement/change.). read more
How to Politely Stop Being Friends With Someone Four Methods: Assessing the Friendship Withdrawing Gradually from the Friendship Being Frank Dealing with the Fallout Community Q&A Friends are essential to our lives as social beings—we confide in them, look to them for support when we’re feeling down, and celebrate with them when we experience success. read more
If 'friends' ignore you then they are NOT your friends. Friends should be there with you every step of the way and if this way they are not there, they are NOT your friends. Like I said again. read more