You are filing too soon. My advice is to talk to a DB coach and get EXPERT advice. You need more information FIRST. Even if there is another woman, there are so many more steps and options before filing, if you really are interested in saving your marriage.
Giving yourself a timeline and a deadline isn't always useful. It's artificial. Doing so is useful if you have been at this a long time, and honestly, 6m is not a long time.
What changes have you really made? When you say you've done a 180, can you identify his stereotype of you, and has your 180 addressed it?
