Answer: passionate love; companionate love
Often, toward the beginning of romantic relationships, we experience passionate love, whereas after the relationship has continued for a number of years, we experience companionate love.
Step-by-step explanation:
Passionate love is a strong feeling of longing and desire we feel for another person before the relationship starts or at the beginning of the relationship. It is also accompanied by desire for intimacy, wanting to know more about the person and being ignorant of their faults.
After a period of time, this feeling becomes companionate/compassionate love which is defined by commitment, trust and deep affection.
While passionate love feels like a hot glow, companionate love is more subdued but persistent.