Don't be a smart ass.... especially when you know your info is wrong but you want to be right anyway...
Even if your right is it really worth the argument you'll have, just for the words, you're right.
If you're having trouble in a relationship it's usually you that has the problem. Most people think that the other person has to change to fit them but thats not it. You are a house of cards each person has to rely on there own strengths and be strong enough for the other person. If onside fails you will collapse on each other. And its painful.