I understand how you feel and how  disappointed you are with the outcome but you should also understand that,this is a game,it must not always go the way you want it because,what's is the fun in it if you can always predict every outcomes of all matches correctly. I am equally disappointed as well because this match would have been an easy plus 3 for Manchester City and after watching the match,I came to understand that,Manchester City tried there possible best to secure a victory but it wasn't working for them. Southampton has always been an easy meal for any club that encounter them but the clash with Manchester City was very shocking . Southampton were just lucky to secure a draw and why Manchester City were so unlucky for not securing 3 points in that match. I hope to see Manchester City winning their next match.