Elon Musk and Grimes' relationship is more turbulent than the Bering Sea. Per the Independent, the unconventional couple shares an unconventional and "very fluid" relationship. They also share two children and a decidedly out-of-the-box way of thinking. Recently, Musk has been focused on repopulating the world and relocating to Mars when he's not acquiring and relinquishing Twitter. Meanwhile, Grimes has been concerned with auricular alterations. "Has anyone done elf ear mods with a good outcome? I'm scared about ear cartilage having a hard time healing," she tweeted. Grimes admitted she's always wanted elf ears but worried the surgery could harm her music career. "The downside of elf ear surgery probably outweighs the upside," Musk opined. "Girl, go take care of your kids," a hater advised. When it comes to taking care of X Æ A-Xii and Exa Dark Sideræl Musk, it does appear that it's all going to be down to Grimes, unless she fancies a fluid relationship that goes way beyond the realm of long distance. According to Vanity Fair, Musk told her "he planned to depart for Mars in 10 years" while she was expecting X. Grimes asked if he could wait another decade to see their kids grow up, but no dice. "It wasn't new information," Musk told Vanity Fair. "I've been saying since before she was pregnant that I was going to Mars." Musk better get a wiggle on, since he's only got eight years left to meet his deadline.