It's hard to watch the kids suffer, but she could have had that reaction if you and your W were dropping her off at your iLs for a date. So, don't read too much into it. Your iLs are clearly troubled by the pain your D4s is going through and they know who is walking away from the M.
You did well w/ your W. Keep doing what you are doing. Her spew doesn't mean that she's not considering moving back toward you, so don't read into it. For instance, it could be that she's been thinking this and it scares her to feel this way. Or she could be ashamed of what she has done and is dodging the pain of that by acting out against you. If it allows her to take that step weather the storm as you did. If it was genuine spew, then it just means that she's not ready yet.
You've been doing the right things. Things aren't deteriorating, and may be thawing a bit, despite the spewfest.
Keep going forward. Children are resilient. Ds hurt them for sure, but you are doing everything to change that future, and you are in a lot better place to be there for her no matter which way the M turns.
Me: 50 W:43 S6, S3 M: 12 yrs. T: 17 M is bad & Not happy Bomb Mar '14 S 5 Feb '15 D Bomb 13 Apr '15 (but "no hurry") DB Coach May '15 Wants proceed on D Aug '15 Starting 1-on-1 negotiations Sept '15