You've checked his phone and youve seen him chatting with another girl u confront him and accuse him of cheating.. U made him call the girl and it turned out to be his sister. youve been a bit careless about how u react and how u say things.. so youve yelled at him. Hes gotten a bit upset that u yelled over something so dumb. He has an attitude but keeps it in peace. Not wanting to bother u or really have a conversation but your eager to show ur love for him. and tell him how sorry u really are.