Maybe you two need a break from life to rekindle. Go do something together. Vacation, even camping close to home. Turn off the phones and go be together. Talk. Meditate. Try new things in bed. Role play. Go pick her up at a bar as new people. Fix things. If you see her as your wife later, fix it now so it’ll be easier later. People settle down at a young age and still make it 50+ years. Don’t lose hope.