In "I Think I Banged Lucille Ball", Alan kicks Jenny out after Walden wants a home gym. Jenny moves in with Evelyn. She eventually moves back in with Alan and Walden when her and Walden get high and share feelings.
In "Some Kind of Lesbian Zombie", Alan asks Jenny when she first found out she was gay. She tells him and Walden a fake story which turns them on, until they out she was lying.