Stranger in my house

Im very very sad..My man is not the one I felt in love with..Yesterday,we were arguing about the fact that before,he always asked me to go to his work when he was alone.But now, he was yelling at me to make me understand that I am not welcomed anymore. Told me that doesn't matter, he was super busy, I asked him why before he used to ask me almost every day to go with him...Apparently, I'm the one who's not understanding. Also,he changes a lot:take more care of him,use expressions he never used before.There is a lot of yelling,mostly everyday, for any tiny reasons that I don't understand myself . Extremely low sex life too.

I just don't know what to do right now.He already told me lies in the past.He dosent have time to call me from work anymore. Help please?