Hi speedbump,
All things considered you are doing very well.
The reply to her message could have been in person. You'll never know the extent of their contact. Just because it isn't in iphone messages doesn't mean it didn't occur.
You do not have to meet him now, nor do you have to meet him ever again unless it's with lawyers and judges present. Remember this. He doesn't have a right to demand to meet with you, and you don't have to offer it. Everything about divorcing him can be done without a private face-to-face.
You can if you want to of course, and decide that it is the right thing at this moment in time.
You can also change your mind, all the way up to the last minute. You are in control. Remember that.
Prepare yourself that seeing him could put you into a deep downward spiral emotionally. This could be very bad for your mental health. I'm not recommending to go or not go to meet him, but I want you to be very ready to have this be devastating. What is your plan for self-care after the meeting? Do you have someone you can call to decompress and talk to?
In all likelihood he will try to manipulate you. Probably you won't see the manipulation right away, and you might feel badly about yourself after it sinks in. Crying on his part could be genuine, or a manipulation. It might be hard to tell right away.
He's a liar and a trickster. Don't believe anything he tells you. Whether that is an explanation about what was or is going on, or about his feelings or intentions, you have to take it as untrustworthy from the beginning.
My WH, when I revealed that I knew the extent of his depravity, became threatening and very scary. I wasn't ready for that. I literally ran away from a restaurant one time, and hid from him. I cut between buildings, and walked 2 miles in heels to get back to my own car.
Because your health has been impacted by all of this, I'm worried about your physical safety in the event that you have to deal with him turning on you, or that you simply fall apart or become sickened again.
I suggest that you identify your "out" for this in-person meeting, and you meet in a public place so that if you start feeling intense emotions such as anger, rage, sorrow, or confusion, or you start having concerns about his behavior, you can literally escape from the situation. Some people prefer to meet in restaurants, the parking lot of a police station, a library, or other place where people can come to help you if needed. Figure out where you will park and make it visible to others, so that he can't corner you as you try to leave. Do not let him in your car, and don't get in his.
If you can't figure out how to keep yourself safe physically, then perhaps consider meeting by skype instead of in person. With skype you can end the conversation with a single click, and get immediate relief from seeing and hearing him.
PROTECT YOURSELF. That means physically as well as emotionally.
FBW then 46, XWHNPDPAFTG the destroyer of my entire life. D-Day 1 '99, D-Day 2,3,4,5,6... '09-'11, D '15. I fell apart. I put myself back together. Forgiveness isn't required. I'm happy and healthy now, and MY new life is good.