HealthyTogether: RCT of a Dyadic Weight Management Intervention

Inclusion Criteria: Veteran participants: * Assigned to a VA primary care provider * Have a weight measurement (BMI\>=30) recorded in the VA medical record within 16 weeks prior to enrollment * Have a second, valid weight measurement recorded in the VA medical record within the prior year * Have a BMI\>=30 at enrollment * Able to participate in virtual intervention sessions during regular business hours Partner participants: * Able to participate in virtual intervention sessions during regular business hours * Speak with Veteran at last weekly * Live in the same state where Veteran receives VA care Exclusion Criteria: Veterans are excluded if: * not fluent in English * have severe hearing loss prohibiting participation * have a dementia diagnosis * have recently (within the past 3 months) participated in a clinical or research behavioral weight management program * have a history of (within past 2 years) or plans to (within next 6 months) have bariatric surgery * are pregnant, postpartum, nursing, or planning to become pregnant within 6 months * are receiving cancer (non-skin) treatment * have drug or alcohol dependence not in remission, a recent suicide attempt, active psychosis, or an active behavior flag in the medical record * report high-levels of alcohol use (AUDIT-C score \>=8) * are receiving hospice or palliative care * are living in a nursing home or assisted living facility * are enrolled in VA home-based primary care * have end stage renal disease * have a current or past diagnosis of anorexia or bulimia * have had an inpatient hospitalization in the past 3 months * weigh more than 440 pounds (this is the upper limit of the study's scales) Partners are excluded if: * not fluent in English * have severe hearing loss prohibiting participation * endorse having a health condition that may limit their ability to participate in the intervention * report high-levels of current alcohol use (AUDIT-C score \>=8) * are receiving hospice or palliative care * are living in a nursing home or assisted living facility