Katy Perry had some pretty solid advice about texting your ex

It will make you want to put down the phone.

Just add breakup coach to Katy Perry's resume. The Part of Me singer was recently a guest on the podcast Conversations With Delilah where she opened up about her personal life - and her dropped her golden rule when it comes to texting an ex. She told Delilah: 

"I've been in that cycle before in a relationship and it had kind of reignited the relationship, and there's only so many times you can reignite the relationship or want to or should and sometimes you just need to write it and never send it. "It's just that exercise — that cathartic exercise.”

And it looks like her process inspired a song on her recent album Witness. Katy co-wrote a song called Save a Draft, all about the struggle not to send a text to your ex. The lyrics go:

"I could just throw a line to you "But I should let sleeping dogs lie "’Cause I know better, baby "I write it "Erase it "Repeat it "But what good will it do to reopen the wound? "So I take a deep breath and I save as draft.”

She explained that the whole thing feels like a "lesson in self control" for her - and what the drafting but not sending process has done for her. She said:

"I like drafting and then sleeping on it because, for me, my emotions get very heightened in the evening [and] then in the morning when I wake up I'm like, ‘Oh, I'm so glad I didn't send that! I can get through another day without this situation.'"