What does it mean when a girl says "I don't feel it anymore"?

Yet, when I decided to leave the house and move out for good, she compulsively cried and told me she can't portrait herself without me. She said she loves me and I'm the best. So? Give her space? I told her I won't pester her, that if that's her decision I will leave her life...we both cried and hug, but she told me she doesn't want me out of her life. She also said that is not about another guy, she said she's not looking for something new and exciting.