Hi
It sounds like her being suspicious of you, while she's in that state, she won't accept neither items like lotion, lip balm or green tea nor accessories.
Remember to clean up after yourself, wipe cum stains, dress her back up to avoid her suspicion, but if you happen to trigger her, simply skip few nights and give her normal gifts bought from shop.
If it happens to be a bug, then please provide as many details as possible so that the dev would be able to reproduce it and fix it.
Hope this helps,
Cheers