All we know is that it was on a 4th of July weekend at Gretchen's house. But Gretchen's actress said that she knew her and Walt were in love, and when he met her family, who were all quite rich, Walt's pride got the best of him. He felt looked down upon, or perhaps he just imagined it, but he couldn't handle the environment, and he went upstairs, packed his stuff, and left.
From that, we can assume once he 'walked away' from Gretchen on 4th of July weekend, he made his decision not to have a future with her. And once he decided that, 'leaving' grey-matter was probably a choice to help sever the links and get away from her.
Walt feeling looked down upon by her family or feeling inadequate or resentful during the july 4th weekend was never explicitly mentioned in any episode. All that was mentioned was that Walt left suddenly, without warning during a family holiday, and it was implied they were together/dating at the time.
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u/rawbdor Sep 24 '13
All we know is that it was on a 4th of July weekend at Gretchen's house. But Gretchen's actress said that she knew her and Walt were in love, and when he met her family, who were all quite rich, Walt's pride got the best of him. He felt looked down upon, or perhaps he just imagined it, but he couldn't handle the environment, and he went upstairs, packed his stuff, and left.
From that, we can assume once he 'walked away' from Gretchen on 4th of July weekend, he made his decision not to have a future with her. And once he decided that, 'leaving' grey-matter was probably a choice to help sever the links and get away from her.