They are! Apparently! And watching the finale of Only Murders was so much sweeter knowing this. Also, fun fact, Meryl was depresso like the rest of us in the pandemic and called up Marty and Steve and was like “hey you guys are fun and do fun things. Can we do something fun and funny together?” And Steve was like… well actually we were gonna call you! And she immediately accepted the role.

Well according to Wikipedia she has been separated since 2017 and his wife died in 2010 so if they are in love I, for one, am very happy for them!