You clearly don't know the Memi history then. They've had tons of falling outs going back to the Anna Oliver days but they always end up making up eventually. Demi even talked about it in an interview once.
Quote:
Miley Cyrus and I are strong headed. When we fight it's brutal and we're like, 'We're never going to be friends again! Then two days later, were like, 'I love you and I miss you!"