Breec3, I have been where you are apologizing for my behavior when my AH should have been begging for my forgiveness. Stop apologizing. Maybe you did step over the co-dependent line and maybe not. But really, look at the bigger picture of the entire event , your daughter was emotionally abused, you were physically abused. Chaos has broken out all around and you are apologizing because you asked if you could go along on the trip with the buddy. Besides "I love you" what apologies have you received?
You are in danger and I don't think you even see it because you are so afraid of losing the relationship. Physical violence does escalate. Please seek counseling, support and safety for you and your daughter.
Live Strong