Alpha VS Beta
A person with Alpha character was fully aware and understands what he wanted and did not allow others to dictate or said what he could and couldn't do in life.
He could easily build a ladder of success or found a partner with a strong and courageous character. He has high self-confidence, often becomes a leader and is even dominant in many aspects.
Both Ryan and Diana Kartika are alphas, they are so dominant, especially in terms of finding a partner and when they acted as leaders.
While someone who has a Beta character is the opposite of alpha. They tended to be less aggressive, but could still achieve success in their own way, namely slowly and carefully.
They analyze their choices first. Sometimes beta is also not interested in being a leader. They are more comfortable to accompany their alpha friends, because he is the best understanding and supporter.