When you are upset/stressed, is cuddling/physical touch something you want from your partner?

When my partner is stressed/tired/upset (unrelated to me), she often sits rigid on the bed facing forward, and doesn't like being touchd or cuddled. my love language is touch and it makes me feel better very quickly, so I struggle a bit understanding her perspective. I have tried giving her affirmations, which doesn't seem to help, trying to fix the problem is definitely not the answer. Sitting there in presence is maybe fine but I can't tell, and I don't think she wants to be left alone either. She's told me she wishes I could read her body language but like??? This has never been an issue in past relationships and it feels just hard to connect unless she is already and in a good mood. Wth can I do or what am I missing?