Question: how to deal with an angry girlfriend?
Answer: Give Her Flowers. Flowers are believed to make people feel instantly happy. ... 
Talk To Her. If you have no clue why your girlfriend is mad, then keep your ego aside and do the first thing – go talk to her. ... 
Listen to Her. ... 
A Hug Would be Nice. ... 
Say Sorry with Gifts. ... 
Treat Her. ... 
Be Humorous.