The "Mysterious Girl" hitmaker's sibling died of cancer in December 2012, and the tragedy caused the 43-year-old star to "hit rock bottom".
Andre was suffering from anxiety attacks which were pushing his partner away from him, reported Female First.
"When I hit rock bottom I thought Emily was going to leave me. She's told me how difficult it was to be with me. I told her at the time 'Go, you don't have to deal with me', but she said no way - that she was in it for the long haul.
Over a year after Andrew's death, Peter proposed to Emily shortly before she gave birth to their daughter Amelia, now two.
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