Lost discussion

Ok so Lost....Michael? Did he lose his memory or was he just acting weird cause the guy was right there? Well we know that Sun is the last of the 6 right? Are we up to 6? So what was up with that flash forward? Was it a simultaneous flashback with Jin-or did he get his memory erased and they told Sun he's dead? We know they can erase memories because remember the skinny bearded dude? When they showed his flash forward a few weeks ago he was crying when the plane was discovered and he didn't know why? And Penelope's dad? whoa crazy. We're moving in like a month-I'm excited. I guess out new ward is super young-young Bishopric, 3 nurserys, huge primary-so i'm guessing it will be like a married ward at BYU. Ca;'s crying gotta go Andrea