My best ex friend

I loved hanging out with you
it was the best times i ever had
we would joke,laugh
and we would just be ourselves
you trusted me
i trusted you with my life
everything was going well
my happiness was on a whole new height
i thought it would never end
that we would never fight
but i guess i was wrong
you magically just changed over night
.....so I'm not quite so sure what to do now..