Manager mode vs Head-to-head issues

I have faced this issue not once or twice but many times in past two months. Now the issue is that, when we play head-to-head and when there is 90 minutes done and there is no stoppage time given the game is ended immediately. But the same thing in manager mode mostly  never happen.

Now I don't understand why this happens because I was on 9 star in manager mode and I was winning 1-2 in 90 minute and then the opposition got a corner which he didn't convert through the cross but I don't know how in 90+6 he scored and I repeat there was no stoppage time given 

EA please fix your game this is unfair for people!!!!