Here you go. I found that editing the line under Ashley to bump her up to 70 arousal (what's needed for the event after the softlock I seem to have found) will allow me to progress, but that's a pretty band-aid fix and probably is about to break something. lol. I fixed my changes here, so this is unedited.
And no, no other hints available for her.
I'm curious about your save file. Are you absolutely positive you did not edit anything in your save file or use any of the in-game cheat "flags" for Ashley? Because one of the flags was set to a value 1 too high for the event to trigger and give you the arousal points.
If you are curious to what I mean. Load that save that is "bugged" and go into the cheats on your phone. Go into the flags and click on Ashley. Scroll down until you see the flag "scared_at_night_level" and set that to 3 instead of 4. Now go to bed without underwear and shut the door so Ashley will join you. This time, you should get your stat increase and the hint will move on.
I need 100% honesty about you using any flag cheats or any save file edits on this save file before I told you to do so. I will report my findings to Faerin, but I also need to know about any flags you may have adjusted. Thanks and have fun!