After a stroke, your brain is a jumbled confusion. Not to mention there can be a lot of pain due to spasticity or tight muscles. If she's able to speak well I would just try to talk to her about what she's gone through and let her know that there's people here to support her. I would have them check her executive functioning skills. I stopped eating and it was because my brain just was not knowing what to do. What my son did for me is he just really put out my favorite foods no matter what it was until I started getting more interest in eating. A stroke can make you feel very down because your life has changed radically in an instant. I would give her opportunities to talk about it and find things that she really loves to eat.