Jena Frumes penned a note to her four-month-old son, Jason King, after her unexpected split from his father Jason Derulo.

Hours after Jason announced their split on Twitter, the 28-year-old fitness model shared an image of herself holding hands with her son in a dark room. 

 

She captioned the photo: "I love you bubsyyy. I promise to give you all the love I never had, you deserve the world baby boy."

"I promise to give you all the love I never had"?Jason Derulo

While she has yet to publicly address their breakup, Derulo, 32, confirmed their separation over Twitter. 

The announcement shocked fans as Frumes had just wished Jason a happy birthday on social media less than 24 hours prior, saying she would "love him forever."

"I promise to give you all the love I never had"?Jason Derulo

 

"I promise to give you all the love I never had"?Jason Derulo