Just because Jennifer Lopez and Marc Anthony are putting on their shiny, happy couple face in public doesn't mean they've fully reconciled. A source tells the Daily News "Gatecrasher" that there are still major problems bubbling under the surface.

“Jennifer is determined to make it work with Marc,” a source close to the couple confides. “But these two have serious, serious issues. Jennifer feels like Marc is holding her career back, and she was sick of his social butterfly mentality while she stayed at home with the twins. There are times when she’s had it, and close to ending it. She’ll throw down her ring and say, ‘That’s it.’ But when Marc realizes he’s about to lose her, he comes right back to Mommy. She enhances his life—she’s a huge star and good for him, and he does love her. And really, all their fighting makes for some fiery passion in the bedroom.”

The source adds that while Jennifer and Marc both want to have more children, the pop diva won't commit to getting pregnant again until her husband agrees to put in his share of the work. “Jennifer needs to ascertain that Marc will assume his half of the parental responsibility...she does not want to be a stay-at-home mom.”

Good for Jennifer! She shouldn't have to sacrifice her entire career—which we all know has already suffered—just so Marc can go out and party. And we admire the fact that she's asserting her independence while fighting to save her marriage at the same time. We just hope it's all worth it in the end.

Do you think Jennifer and Marc can save their marriage?