Dal.
I just don't think it's a good idea. I mean, I understand why you're doing it and I understand fully well that you want to be there for her and the baby, but I don't think it's a good idea. I know it's what dad wanted and I know you want to make him happy, but do you want to get married? It's not an archaic thing anymore, and you can still provide for the baby without actually being a husband. Violet's husband, I mean.
That being said, if that's what you want, then I'm here to support you. And I will defend you and her for any reason against anyone.