Man I’m seriously torn in life. I’ve just graduated business school and have a great job working at an investment bank. Hours are crazy but the work is interest

Man I’m seriously torn in life. I’ve just graduated business school and have a great job working at an investment bank. Hours are crazy but the work is interesting and high impact. I just turned 30 and my girlfriend of 2 years wants me to propose a year from now. She’s a great girl and I’m only getting older but I just don’t know. I think we’d be happy forever but at the same time I feel like I’m still young and would be giving up optionality/flexibility to quit my job and travel or move to a foreign country (the latter of which is a life goal that would be complicated quite a bit by having a spouse). These decisions just get so much harder with a spouse in the picture. She’s also 32 and would need to start having kids in a few years which really would lock me down in one place in a big way. I’ve been stressed out about what to do for literally the last 9 months. Half of me feels that if the decision to marry is this hard then it’s a bad decision but at the same time my reasons for not wanting to be married may be ridiculous and I may never quit my job and move abroad even if I become single. I also may still feel this way five years from now and will never get married and realized I passed up a great woman who would be an awesome life partner.