Katy Perry broke up with singer-songwriter John Mayer in February but she's reportedly still "devastated" over the separation, a new report suggests.
She was visibly upset when he moved out, and has even been seeing a hypnotherapist since the break-up to allegedly try and "retrain her brain."
An insider told Grazia: "Katy was devastated ... they had talked about marriage and she seemed to think he was a changed man, so she is beyond gutted."
Alas, he supposedly cheated with Lauren McHale. What's a girl to do now?
"Katy is a firm believer in alternative therapies and she wants to wipe him away from her life for good, so she decided to see a hypnotherapist."
"She doesn't want to find him attractive anymore," the source added.
Wait ... so John Mayer is such addictive sexual napalm that you need a shrink to tell you not to bang him anymore? Come on Katy ... you're better than that.