Thinking that if you only do X that the other person will be happier and stop abusing you. (especially where X is getting married or having children)
Absolutely! Innate behavior is innate behavior, no matter what you do. You cannot love or manage it away. Just bite the bullet and move on with your life before the person in question does some real damage to you.
Failing to communicate.
Make a baby before you want a baby.
take ur partner as granted
not trusting the other person when there is nothing to worry about.
rather paying attention on her serious matter............ taking a glimpse of other sexy gals
get it drowned..sink sink..no more sailing..
Revolving your life around your partner. Ensure u have a life of your own so that if he choose to leave or u need to dump his you won't feel so bad cuz you've kept your life, your friends and all your hobbies.