According to what Max ব্যক্ত on Twitter: 'It got called off', he never went into specifics and I suppose he wants it to stay private. However he and Michelle are still dating =). So we should just respect their privacy and be happy for them.
Michelle feel that Max George doesn't have time for her since he been recording almost everyday with the band. Even though the wedding was called off Michelle admits that she'd still like to get married. She just wants to wait for things to slow down with the boys.