Yeah, shortly after he got there. But he was in and out relatively quickly and he's been around every since. Plus, if you go to his IG you'll see dude has put in a lot of work getting himself fit. They honestly *could* have been using him and he apparently was doing house shows and stuff like that. IMO keeping Mike off tv b/c Maria was pregnant and therefore unavailable and then putting him back on tv (albeit 205 Live) the minute she was ready to go again is just proof that she's the one they wanted and he's just the free gift that came with their purchase.
ETA: Just saw Maria say he didn't actually go anywhere for rehab and worked through it (which is...that's a choice lol) so I guess maybe they just kept off tv after his initial appearance b/c dude was going through some things and needed to get right.