You don’t have to forget it. You don’t have to even forgive it. That shit fucking sucks. If you ever want to forgive, you do it on your own terms and time. Something like that can be unforgivable based on the circumstances because sometimes it’s just that way. It’s ok to feel however you’re feeling and if you don’t want to talk to her, then don’t. Just remember, “the blood of the covenant is thicker than the water of the womb”. Don’t let anyone guilt you into a decision you don’t want to make.
i’m in a similar situation, and i can definitively tell you this: her being better now does not make up for nor cancel out the damage she caused to you during your childhood. it’s unrealistic for her to expect you to just get over what she did when you were younger, because there’s so much research indicating that alcoholism in parents is damaging to their child in a somatic and emotional manner. this damage is not something that can be worked through overnight. (1/2)