What couples without kids fight about: who does the dog love more, what to watch, what's for dinner, etc.
Phrases that could kill your relationship: you're being to sensitive, do what you want because I don't care, etc.
If you get criticized for these for these habits, you're actually financially responsible: you drive an old car, you buy used furniture, etc.
Second Date Update: Raj & Monica have a great time at a Livermore winery and went for Mexican. What did Monica see on Raj's phone that made her ghost?