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Timing is everything. Lady Gaga and Taylor Kinney have been engaged since February 2015, but now nearly 16 months later, they still seem no closer to saying "I do."

What's the hold up? Is she in a bad romance?

According to Life & Style, Gaga just can't make up her mind about the date or the location, and it's apparently starting to really irk her main man.

"Taylor is usually laid-back when it comes to wedding planning, but hes become so frustrated, it's causing real trouble," a source told the tabloid. "He's even given Gaga an ultimatum — he told her it's now or never."

The source goes on to say that Gaga has flip flopped on when she wants to walk down the aisle.

"She's gone back and forth between spring and summer and winter so many times," the source said.

Not only that, the perfect venue for the nuptials also seems to be up in the air.

"She switches from Hawaii to Italy from week to week," the source adds. "Taylor wanted to be hands-on and involved with all the planning, but he's given up."

Taylor said recently there is one thing that is an absolute must at the wedding, besides a bride, of course, and that's "good food."

But even if Taylor wants no part of the planning, Gaga has plenty of people insistent on helping her.

In an interview with Ryan Seacrest in March, she said her family is firmly grabbing the organizational reigns.

"I think if I wouldn't let my mom do this with all of us and my family - I think if I would've denied the women of my life the planning of the wedding - they would probably kill me," she joked. "I have all the help in the world in a way!"

The "Poker Face" singer didn't reveal too much to the radio host but said that the wedding won't be super extravagant.

"We are not planning anything that is worth writing about," she said, which must be a joke considering the stature of the superstar couple.

In the meantime, she'll just keep rocking that stunning 15-carat custom ring.