So I've just spent the past little bit playing catch up here, reading the last 8 or so pages.
You are 1 million percent being baited and you NEED to keep communication to lawyer ONLY. Your statement that I bolded above will be used against you. She will try to create the illusion that you are emotionally abusive and that your lover for her is based entirely on condition. In that statement, you've given her an ultimatum. That looks bad, even though that's not your intention. It's imperative that you throw off this mask of naivety. Irrespective of you stating you're not a vindictive person, you need to really stop trusting everyone else to be like you. This woman is looking out for herself only and will take down whomever gets in her way, however she feels she needs to, to get the job done. The painful reality is SHE DOES NOT CARE ABOUT YOU.
THIS. You have a 15 year old that seems to be a bit forgotten in all of this. She, too, will have been traumatized by all of this and she too, has been a victim of abuse. She will be watching carefully now on how you navigate your way back through. You seem to fall hard and fast and I know you have your church community, but that doesn't always help you understand the underlying drivers for why you've behaved as you have and why you can't come to terms with ending a relationship with an abuser. You need a professional to help unpack all of this.
Additionally, I wouldn't even be worried about who you date in future, be it a foreigner or an American, at this juncture. You have so much trauma that requires addressing before you're even ready to think about that. Will Smith once said that he wasn't responsible for his wife's happiness; that statement is 100% true. At the end of the day, YOU are responsible for YOUR happiness and if you have a loving and supporting partner who contributes to that happiness, that's really the ultimate goal. Isn't that what you want for your daughter, too? For her to see that she can be a strong, confident person and the people she curates into her life should be ones that raise her up, not bring her down?
Your lawyer is a divorce attorney, so of course they aren't concerned with the immigration portion. It's not their wheelhouse.
I really hope you heed the advice given by many here and can begin to reassemble your life. You've begun the mechanical things like withdrawing the I-130 and filing for divorce. You've started to lean back to your community, but there's still a lot of work to be done. Please, think about your child and how you want her future to be, the people you want her to choose to surround her and her perception of success and happiness.
Best of luck 🍀