"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.

Nearly a year after Kevin Costner and Christine Baumgartner finalized their divorce, Baumgartner is making things official with her new boyfriend.

Less than a year after finalizing her highly contentious divorce from Kevin Costner, Christine Baumgartner is engaged once again.