Dude,this is simple.Look,when it comes to women,everthing is the opposite,everthing is reversed.For example,when a woman says you`re a "nice guy",or says you`re sweet,or says you would make someone a good boyfriend,what do you think that means?It means you would be "nice guy"for SOMEONE ELSE,sweet for someone else,a good boyfriend for someone else.I know this sound crazy,but as long as she has something to complain about,(as long as it`s nothing too major)your relationship is ok.It`s when everthing seems calm,quiet,and peaceful is when you have to worry.