Kaley Cuoco and Johnny Galecki are some of the friendliest exes in Hollywood. The two first met on the set of The Big Bang Theory, where they developed a romance offscreen and dated for almost two years. Though they eventually broke up in real life, their characters continued to date on the series, eventually tying the knot during the show’s season 9 premiere and again in the season 10 premiere.

2007: Kaley Cuoco and Johnny Galecki meet on the set of The Big Bang Theory

2008: Kaley Cuoco and Johnny Galecki start dating

2009: Kaley Cuoco and Johnny Galecki break up

Jan. 6, 2010: Kaley Cuoco and Johnny Galecki attend the People’s Choice Awards

September 2010: Kaley Cuoco opens up about her relationship with Johnny Galecki

November 2013: Johnny Galecki says he’s still good friends with Kaley Cuoco