How do I (19F) become a better girlfriend to my "perfect" boyfriend (21M)?
For some brief context, I've (19F) been with my boyfriend (21M) for over a year now, and a lot has changed in the dynamics of our relationship. Here's the most cliche way to put the beginnings of our relationship: evil playboy meets unexperienced girl and becomes good guy. We were in an evil situationship for six months before we started dating, but that's a whole different story. Since he's met me, he has changed A LOT; he has graduated college (early), gotten a well-paying job in his field (100K+), and also been the most perfect boyfriend/best friend I could have ever asked for. I go to college in the city he lives and now works in. I feel like his life has been on an uptrend while mine feels like I have been spiraling continuously since I entered college. I am a pre-med student who just finished a rough second year in all aspects (school, family, friends, etc). I feel like my world is on fire and I have a lot of self esteem issues at the moment. I'm so neurotic compared to his pragmatic self. He's one of the only things in my life that has remained stable, and treats me like his world.
He always accommodates me in ways I have never been treated before. He drives over an hour to see me multiple times a week even though he works around 60-80 hrs/wk. He spoils me with very good and expensive dinners all the time. He always listens to my rambles and issues and provides amazing advice and comfort (he wasn't always this empathetic, but wow, he has learned a lot since I first met him). He knows all my love languages and surprises me all the time with handmade bouquets, gifting things I maybe mentioned that I liked once, or just being so attentive in-person, taking care of me whenever needed, making me food when I'm sick or pushing me to take care of my health. I'm going abroad for school this summer, and he even bought an overseas ticket to see me for my birthday. This all aside, he genuinely is my best friend.
I am SO not used to being on the receiving end of so much love and affection. For a while now, I have been wondering how I can be a better girlfriend to him because he does so much for me. As a person, he is pretty guarded around other people, but is very charismatic (very witty and evasive at times too lol). He was SUPER avoidant when I met him, but we have established a very secure relationship. He's insanely minimalistic and does not have any strong desires for anything at all. I know his preferences and accommodate him as much as I can, like always having his favorite soda with me, or being decisive about menial decisions after his long hours of work, but I really want to help him or do something nice for him. Are there any gestures that are appreciated by minimalistic men? He provides everything for me, but are there any suggestions on kind things I can do in return? Additionally, how do I avoid these preemptive feelings of possible dependency?
TL;DR: My (19F) boyfriend (21M) goes above and beyond for me. He is my best friend and is the most patient, attentive, and dependable person. He has the resources to spoil me and does so liberally, and I feel like I need to do more for him. How can I return the favor? Also, how can I avoid feeling too dependent on him?