How I Met Your Mother By allyssa.larose Sep 1, 2005 Marshall Proposes to Lily After proposal. May 1, 2006 Ted and Robin start dating. Ted and Robins Relationship May 1, 2007 Marshall and Lily Get Married Lily and Marshall Nov 1, 2008 Ted Gets Left at the Alter Left At The Alter Note Apr 26, 2009 Robin and Barney Get Together Barney Professes Love Apr 1, 2010 Ted Buys His Future House Ted's Future House