How do you create and develop your male love interest?

Hi! I’m an aspiring contemporary romance writer and I’m having trouble developing my male love interest character. I have his name and the way he looks and other very simple (unimportant) aspects decided but I have no clue as to his backstory. My MC is introverted, creative (artsy), family oriented, bubbly, etc. I know for certain that he is an extrovert, to bring her out of her shell but that’s about it. I definitely want him to sort of open her eyes about getting out into the world more and I want her to inspire him with her talents and her strong core values when it comes to chasing life goals such as a job career as a prime example.

So my question is…how do you personally create your fictional love interest? Do you create them based on your MC and what they NEED ( so to say )or do you completely develop them as an individual character and figure out ways to have them mesh? Any advice would be much appreciated!