hey there!
i know this post is rather old but i figure it could be helpful to others as well.
if your little is not feeling happy in littlespace it is important to discuss your worries with them. they may be struggling with depression or going through some emotional struggle. they could also be feeling ill or have a bad memory from littlespace. something may have happened that you are unaware of that they are not communicating. sitting your little down and expressing your concerns about there well being would be the best action you could take. as a caregiver you look out for your little and they will most likely greatly appreciate you noticing that they may be unwell.
best of luck!
xoxo Vivi