I May Act Like I Am Not Sad When I Really Am Sad

I hate feeling sad. I have been realizing that lately I have been acting fake with friends and family. I am sad but do not want to tell them. I am starting to feel the effects of quarantine. I have been alone before for long periods of time like this and even more were I had absolutely no one not friends and no family. I am trying to act like I am doing well so I will not affect them with my sadness even though I ask about theirs.