Don’t you dare compromise. You have your dream job. Do you know how rare it is to actually get your dream job?
You need to tell your boyfriend that you love what you do, you define yourself by your passion, and an attack on your career is an attack on who you are. Phrase it a little more politely than I just did if you want, but you need to make it very clear that you’re not going to hunt down an office job just because he thinks it is best for you.
Either he needs to change his mind or you need to change boyfriends. This is a big enough deal that you two have to agree on it. So talk it out with him, tell him that you’re not going to compromise, and hopefully he’ll come around. If he really means well, he’ll support you from now on.