I hope you realize this is considered immigration fraud. There's no "help" needed. You can removed conditions as a married person together or divorced person on your own. Playing games of staying married for the sole purpose of I-751 is a very bad idea.
The best option, if marriage is beyond repair is to file for divorce, and apply for I-751 with divorce waiver. If your wife is nice and friendly as you say, she'll cooperate with getting divorced ASAP and can write a nice affidavit describing your relationship in details and reasons why you divorced. Then say in that affidavit she doesn't object you getting conditions removed. She can also help gathering all the evidence to support your marriage was entered in good faith.
If you're in a state where divorce can be finalized quickly, don't hesitate and move on. If the love is still there, you can remarry later.
The biggest issues are:
- Either you commit fraud by staying married for immigration
- Or she changes her mood and starts threatening you with various things while I-751 is pending. Keep in mind, it can take 2-4 years nowadays to remove conditions. Do you want to live in stress for all these years?