Should I ask my advisor to please pretend that he is happy with me until the end of my contract? I am a post-doc in the UK. Today, In online lab meeting, my boss said that the name of my two postdocs are in two different grants and our technician is in both but he did not take me into account as his postdoc. He then asked me, are you going back to your country? I told no please don't kill me and everyone simply laughed. I am in 18th months of my employment as a postdoc with him and my contact is until December 2021. His today statement has been a huge pain by which I have lost myself totally. I admit that after few months of my employment, from his body language and all reactions I realized that he is not happy with me, he is not taking me seriously, he is not eager to listen to me... 

Do you think it is logical if I ask a private chat with him and request him at least he please pretend that he is happy with me until the end of my contract? because by each lab meeting I become such a frustrated and desperate that I have found myself in a pure darkness of hopelessness. In the morning turning the Teams app to see my colleagues who they are all happy gives me a feeling of death. I can not change myself, I can not increase my intelligence, seeing them when boss cherish them makes me hate myself and all my day like a nightmare

Update

From all of your comments I can say, my boss is not happy with me. I have started to find a job, I hope I find somewhere needs me. This job is really cruel and you would be eliminated from the system if you are not good enough. Thank you everyone for giving the time to help me.
I would ask for a meeting, but not for the reason you suggest. You may be misinterpreting messages. I'd ask him if he was pleased or not with your work and what you can do to improve it in his opinion. If it seems like a good idea when you are having such a conversation mention that you think he is displeased and don't understand why. 

Don't overthink that they laughed at your comment. It was a somewhat strange thing to say even if you were panicked. 

And you should certainly talk to a personal health counselor about your emotional state. That isn't healthy, but professionals can help you deal with it.