I don't know what to do

I literally just got yelled at because apparently I didn't explain snapchat to him properly. He usually hates everything to do with technology so in the past when I've tried to teach him he just pushes it away so I don't enjoy or want to teach him anything anymore but now that he's asking me about it I'm the bad guy because I assumed he wouldn't care to learn about snapchat stories. So now I get to sleep alone...AGAIN....and cry. Anyone have advice I'm desperate