Evelyn Meets Chelsea

Charlie's mom, Evelyn, is quite shocked to meet his fiancee, Chelsea (Jennifer Taylor) for the first time. Charlie never even told her she existed, let alone that he proposed.
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Two and a Half Men Season 6 Episode 20 Quotes

Chelsea: You didn't tell your mom we were engaged?
Charlie: If she didn't sell me the house, she wouldn't know where I lived

Chelsea: What's wrong with me having a warm and a healthy relationship with your mother?
Charlie: For starters, you'll be the only one... ever!
Chelsea: Oh, don't be so dramatic
Charlie: I should be wearing tights and holding a skull... preferably hers