You could tell them slowly, "Hey, I don't really like the way
you're acting these days," Or, "Why are you being so mean to me
these days?" Sometimes, friendship can get old, and when it does,
you just have to live life and move on. Or you could always try to
resolve the problem in the most responsible ways you could. Just
try to not show any anger (unless you want to lose your friend) and
try resolving things in the most peaceful way. Hope this helped
:)
Just tell the shithead to suck a Dick