Cobra Starship’s Gabe Saporta is adjusting to married life with ­designer Erin Fetherston. “We just moved in together a few months ago,” Saporta, who tied the knot in May, told us at a ­Radio­Shack pop-up-store event in Times Square last week. “My building didn’t allow dogs. We moved into her apartment, and I’m renting mine out, and we had to make room for me, which was really [bleeping] annoying.” Of things he was sad to let go of, Saporta joked, “I left a lot of my alcohol behind.”