I agree with Eryn.
You posted this topic also last summer, and I'm sorry but I think you're stuck, even if the incident was abusive. There's no amount of looking back that will help you fix what happened in your life, you can only take responsibility for your own part in the demise of your relationships (it is seldom one-sided) and then do the best you can to move on. Have you considered seeing a therapist? Not a gender therapist, just someone who can help you come to terms with your past and move on.
You seem to think that your childhood incident caused you to crossdress later on in life:
1) Please consider that likely hundreds of thousands of other boys have been subjected to similar experiences at one time or another in their lives, who didn't end up being CDers ... so if you CD, you likely would have CDed even if your parents had not done this.
2) As to your daughter refusing you access to your grandchild, I think she also has issues if she blames subsequent marital difficulties on having seen you dressed as a woman when she was a teenager. Sorry, but I don't buy that, unless there's a lot more to the story than you are sharing with us?
3) And your exes outing you out of maliciousness? Although I abhor the behavior, sadly a lot of people are vindictive when they end relationships. You should hear what my ex told my sons about me, to the point where my eldest refused to talk to me for three years. Thankfully I didn't accept that situation, I sought help on how to best remedy the situation, I didn't give up, and our relationship is good now.
In any case, please don't take my post the wrong way. I urge you to see a good therapist who will help you to determine your own responsibility in what has happened in your life, and it is only by doing this that you will be able to move forward. I say this with kindness, but I think there are lots of things that a good therapist could help you see, that you cannot see right now, but that will finally bring you peace once you are able to see them.