How do tell your friend she's changing?

True friends ALWAYS are honest with each other. Go for a walk, go to Starbucks and chat and then discuss with your friend how you feel about her. Don't accuse her of anything or blame her right off the bat, but listen! Perhaps she has personal problems (all humans keep some secrets to themselves) and she may not be ready to talk about her problems. Let her know you are her friend and are there for her at any time. Like any relationship we have to take the good with the bad sometimes and life isn't all laughter. True friends are there through the tears, heartbreak, worry and there for the laughter.