Consistent comebacks are not realistic!!!

It can not be that every time I go up by 4 to 5 goals the other team in the second half scores 4 to 5 goals in a row.  This happens in real life but not every single game.  It doesn't just happen to me,  it also happens for me.  Sometimes I get killed and then all of a sudden the other team can't make a pass and i easily somehow begin to catch up and score 4 or 5 goals when in the first half I could barely even dribble because the opponent had my number and was better than me.  Then second half I didn't get better.  The game made my opponent get worse and it is so obvious I have literally quit a game after scoring 6 unanswered goals and I just knew the game was nerfing my opponent and I didn't feel right taking the win.  I even wrote him afterwards saying you didn't deserve to lose and I couldn't take that win because it was embarassing and shameful that the game handicapped him and rewarded my with a win even though the opponent was hands down better.