My boyfriends mom?

My boyfriend’s grandpa is in the ICU. I just texted his mom asking how she’s doing and the family. She just said that he is still in the ICU. So I just replied saying I’m sorry to hear that and that I hope he gets better soon. I also mentioned that if they needed anything this weekend I will come over (I live an hour and 15 minutes away) to help out with anything. She just liked my message. I totally understand that she’s going through a rough time right now, but saying thank you isn’t that hard. I’ve gone over to my boyfriend’s house and have helped his mom with stuff. She would literally say “good your doing it” she would never say thank you! She would also mention everything my boyfriend needs to work on while im there, and literally look at me too. We don’t see each other much at all because we live an hour and 15 minutes away. We have been dating for 3 years now. How do I get his mom’s respect?
My boyfriends mom?
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