3x08 Ellie hits Laurie when she says she doesn't care about her mum. It was earlier stated that she hits the people she loves.
3x15 Jules and Grayson's wedding.
4x04 Jules and Laurie officially welcome Tom to the group. He comments that it's the greatest thing that's ever happened to him
4x13 Ellie, in a voiceover, admits that she loves her friends even if she won't admit it out loud. In Jules' voiceover, she says "I love you too Ellie."
4x15 Chick tells Travis and Laurie about how he met Travis' grandmother
I met your grandmother fifty years ago on a train. We talked for hours 'til I fell asleep. When I woke up, she was gone. I didn't even know her name. One year later, I'm in a diner in the middle of the nowhere when she came in to get out of the rain. I'll never forget the way she looked at me. That was it. That was fate.