Gwen Stefani May Have Found Out About Gavin Cheating Through iCloud

Gavin Rossdale's concept of monogamy is bananas. B-A-N-A-N-A-S.

Whenever a Hollywood couple you really like breaks up, in a little way, you feel like you are being broken up with.

You feel the pain of love coming to an end as you see something you watched getting built fall horribly down.

For a lot of people, Gwen Stefani and Gavin Rossdale were that couple.

They were seemingly very in love, had cool rocker backgrounds and a boatload of adorable rocker kids with bonkers rocker names (Kingston, Zuma and Apollo).

What else could you really ask for in a Hollywood couple?

But that all came to a screeching halt earlier this year when Stefani and Rossdale announced they'd be getting a divorce, ending their 13-year relationship with each other and fans' relationship with them.

Us Weekly now reveals inside sources close to the couple say the 13-year marriage ended when Stefani found out Rossdale was cheating on her with the family's nanny, Mindy Mann.

Why, Gavin?!

Supposedly, Gwen found out about the affair through the couple's Cloud network.

A source says one of the other nannies employed by the family found several raunchy text messages, nude photos and plans for Gavin and Mindy to meet up.

The proof was on Gavin's phone but accessible through an iPad because of Cloud sharing.

The other nanny told Gwen, who confronted Gavin. Although Gavin said the communication with Mindy was just flirting, Stefani was done with the former Bush rhythm guitarist by that point.

The worst part is, Gavin supposedly cheated on Gwen for around three years, a period of which she was pregnant with Apollo.

Ew, Gavin. That's worse than Golden State. #BushBurn.

Gwen since moved on and recently started going out with fellow “The Voice” host Blake Shelton.

Citations: Gavin Rossdale Cheated on Gwen Stefani With the Family Nanny for Years "Right Under" Her Nose: Details Read more: Follow us: @usweekly on Twitter | usweekly on Facebook (Us Weekly)