These basic compatibility things are those which will make or break you. There is no right or wrong - it's just about how well the two of you fit together.
Perhaps you do need a laid back type of girl. There's nothing wrong with this. On the flipside, my hubby and his mates got bored with that type of girl and all married women who will stand their ground. Your current girlfriend may be happier with this type of man.
I can't tell you what decision to make - only to recognise that these issues won't go away.
Never regret anything that has happened in your life. It cannot be changed, forgotten or undone. So, take it as a lesson learned and move on.