Answer: Tough Situation
Explanation: I’ve been in this situation before. My great grandparents are not to supportive of it. I often heard them talk bad about LGBTQ people and it made me feel bad. So one day I told them, and they were surprisingly supportive of it and ever since then they don’t talk bad about LGBTQ people anymore. But based on what you said I personally wouldn’t tell them and try to keep it as down low as possible. I know this sucks but depending on how old you are this will probably be the safest thing for you. I hope this helps :)