I've read your older threads so know some of the background here. It's sounds like you asked her to manage her boundaries better (eg keep to time boundaries, not introduce stuff around her daughter etc) which may then have made her think about boundaries in your relationship more generally. Her touching you and comforting you the way she did sounded like a crossed boundary to me, though I understand you found it helpful - and she needed to be explicit about what she was doing and why. From what I can gather she's still available to you and in that sense things haven't changed but she has really tightened up her own boundaries, which makes it feel very different.