Alex Rodriguez and his new girlfriend, fitness trainer Meghan Hayden, are living together in the Hamptons, according to a source speaking to Page Six. The couple, who were first publicly seen together at Michael Rubin’s white party in early July, have rented a house in the area for the summer.

The speed of their relationship appears to be accelerating. Rodriguez's new romance follows his split from longtime girlfriend Jaclyn Cordeiro, a bodybuilder. Their breakup, after three years of dating, was confirmed in May. Cordeiro stated at the time that they were taking time apart with "mutual love, care and deep respect" and that there was "absolutely no animosity, drama or negative story here." She also mentioned navigating a serious family health matter.

Rodriguez and Hayden have been seen together at various Hamptons locations, including Bounce Beach in Montauk and Sag Harbor.

Hayden, a former Division 1 athlete, recently hosted a workout class at Surf Lodge in Montauk. The event was part of a promotional push for ATeam, a new fitness-based dating app in which she is an investor and founding committee member. While notable figures attended the class, Rodriguez was reportedly absent.

Page Six initially reported on Rodriguez and Hayden's relationship.