"Her friends and family have been incredibly supportive of her relationship with Josh, and everyone can tell how happy they are together," a source tells PEOPLE of Kevin Costner's ex-wife.

Kevin Costner's ex-wife Christine Baumgartner has confirmed her engagement to her boyfriend Josh Connor after a romantic beach proposal

After finding love with Costner's former friend and wealthy financier Josh Connor, a source told PEOPLE that he proposed on January 26 in Santa Barbara. She reportedly thought it was just an "intimate dinner." "It was about to rain, so almost no one else was on the beach when Josh got down on one knee," the insider explained.