According to the divorce docs, obtained by TMZ, Tarek cites irreconcilable differences as the reason for ending his 8-year marriage.
He's asking for joint custody of their 2 kids. But this is interesting ... he wants her to pay him spousal support but wants the judge to block any move she makes to collect it from him.
A source close to the couple tells TMZ, "It's civilized, or as best it can be under the circumstances. They have to make it work if they want to continue monetizing what they do."