Defining The Cause of A Split

Human are very much funny where we always blind folded by something not true. And when its about time to have a change, where we know the relevant parties will not able to accept, we always tell lie. There's one most common lie we seen all day long is during the couples are about to break up or divorce, they do not trace problem back to the root cause, but they tracked the problem at the stage immediately before it happen. Example:

She: honey, can we stay home tonite rather than going out for that movie? i know u wanted to watch that movie so much but i had been bz for consecutive 3 days and im extremely exhausted.
He: alrite dear. its almost 11pm.. hv u taken ur dinner?
She: nah i'd lost my appetite working lotsa documents for tomorrow's meeting and i think its a good timing for me to slim down.
He: ok then, go get ur shower dear.. u really looked exhausted, i go get u a cup of milk instead.
She: thx honey..

After the wife went into the bath room, he heard an sms on the wife's handphone and picked up. The texts read as below:
"Great movie huh.. I think I agree with you, Pepper Pots are better than Natalie Rushman in that movie earlier.. and thanks for the dinner you had accompany me.. it has been a better dinner than yesterday nite.. miss u"

So there goes the wife came out from the shower....

He: so how's ur preparation for tomorrow's meeting?
She: ahh.. its alrite i jz managed to finished it jz now and at first time come back home..
He: i made u a cup of milk..
She: thx dear..
He: haha.. who do u think hotter in iron man 2? pepper pots or natalie rushman?
She: huh?
He: tot u had a discussion earlier with another guy..
She: U CHECKED ON ME??!!!!!
He: jz so happen, and wat kinda things you can hide from me?
She: DO U KNOW WAT IS MANNERS AND PRIVACY? SINCE U DON TRUST ME!!! I WAN A DIVORCE!!!

So we are investigating why would this lovely couple need a divorce:
1. Because the wife lied that she's busy but watching movie at the other round.
2. Because the wife went for dinner and movie with another guy.
Point 1 and 2 has been certified invalid, because there is point number 3:
3. The husband shows no respects on privacy by looking at the wife's SMS.

Judge it.