Am I being petty or should I be annoyed at him?

So my boyfriend is really not the expressive type at all. He’s wonderful honestly, but sometimes as a girlfriend I do sometimes need the reassurance that he still wants to be here. Not that I’m insecure but just because I want to know we are on the same page. So a little backstory, my family owns a business. I introduced him to my uncle, my uncle took a liking to my boyfriend and offered him a job (he didn’t have all the right credentials but he had the work ethic and the passion to learn that made up for that.) Since then my boyfriend is basically making a whole bunch of money and making a whole bunch of networks and he’s basically set for a while and now he’s planning on moving closer to the job and we would be about an hour away after that, (we don’t live together).

The other day we where talking and I told him I was a little concerned he would go off and move and become this big shot and our relationship would be worse or different and he would forget about us with all his new work. His response was “of course I’m not gonna forget you! Without you I wouldn’t be where I am today!”

Would this bother anyone else? Like I met him before he got all successful and I would still love him if he worked at a grocery store. And I don’t feel like it was because of me he is successful, all I did was introduce him to my uncle and my uncle is the one who saw potential and drive in him. It just seems a little weird like in my opinion you should be in a relationship because you love someone and you shouldn’t love them for success reasons?

Am I over reacting or maybe I’m just reading this wrong?