Matthew Gray Gubler had two relationships that he mainly kept more under wraps, especially since those girlfriends were relatively unknown, at least compared to his ex Kat Dennings. However, it seems Gubler had a type and that was usually fellow actors or models. Following his split with Dennings, for example, Gubler reportedly went on to date Portuguese screen star Marisa Morris in 2008, per The Things. Despite them both working in show business, not much is known about their romance other than they were linked until 2010.
After Morris, Gubler reportedly moved on with model Ali Michael in 2010. According to PopSugar, the two met through their shared modeling agency, DNA, but sparked dating rumors on social media after they were seen frequently tweeting at each other. Yet, things didn't seem to be official until they were later spotted dining out together in Los Angeles. While there are not many details on their relationship either, there's a YouTube video of them digging up dinosaur bones together where they seemed to be happy. Alas, they eventually broke up.
As of 2022, Michael is still modeling and appears to be an influencer with over 255K followers on Instagram. From the looks of her posts, she's also moved on from Gubler with singer Avery Tucker. However, a fan did awkwardly comment on one of their photos, "Seriously...I dont know how this guy (or any guy) can appeal to you after you've been with Matthew Gray Gubler. He's PERFECTION."