Unfortunately, I think Ricky is really starting to question Amy's love for him. In all honesty, I think he's been questioning it for quite some time and the acceptance letter from NY only increased his questioning. When Amy was leaving the apartment and told him she loved him, his response was "We''ll see." I think he's starting to believe Amy doesn't really want to be married to him, and would rather go to NY without him. He was panicked last week over it, and his urgency to get ahold of George tonight was more proof imo. Ricky's insecurities with her are at an all time high, and he continues to pick fights with her because he's convinced himself that she isn't being honest with him about something.