you always get what you want

I was recently having a conversation with my ex. she told me that "you always get what you want." she didn't say it in any sort of hatred but more of that of being envious. I've been told this statement before. "oh marcus! you always get what you want!"
my reaction to this comment is "of course I do, why wouldn't I?" Most of the time I get what I want I made an active decision to get it and often had to work to attain it. so why shouldn't I get what I want? shouldn't we all get what we want? Am I supposed to want something and not try and get it because we are all supposed to be unhappy?
Life isn't difficult, too many people think it's much more complex than it is. Do things that make you happy, don't do things that don't, if you want something (that doesn't involve hurting others) then get it. of course I get what I want. why don't you?