Would you . . .

Stay in a relationship with your children’s father just to keep a family although you aren’t really in love with him anymore? That’s what I’m doing but I’m unhappy, I’m going into a depression state of mind. But I’m trying to keep a family and I want my kids to have their dad in their lives, if we aren’t together he don’t do anything for our children nor see them. I’m just so lost but I want to be happy again. What would you guys do?