Seeking Advice on a Complicated Situation

Salam everyone. I'm a sister who reverted to Islam, and I've been in a relationship with a Muslim brother for three years. We've both tried many times to make things halal through marriage. I don't have contact with my parents; my father has passed away, and my mother hasn't been in touch since I was 16. Before he died, my father had met my partner and gave his permission for us to marry. My partner has spoken to his parents about us many times, but there always seems to be a new reason why we can't proceed. They've said we're too young, we haven't finished our studies, he isn't financially settled with a house and career, and that our different backgrounds might be an issue-even though we've both said repeatedly that culture isn't important to us, and I don't strongly identify with my Jamaican heritage. Other concerns have included my race, the fact that I'm not a full-time hijabi (though I dress modestly), and now they're saying they don't think he's ready. We've made it clear to them that we're happy together and really want to make this halal. He feels he needs his parents' approval because he fears being cut off from his family, but I keep reminding him that as a man, he can marry who he chooses, and that pleasing Allah should be his main concern. He doesn't want to end things, but I feel time is slipping away. Each day in this situation makes me more inclined to leave, yet it's hard because of all we've built together. I live independently and handle my own expenses. He helps when needed and covers our shared activities. We both value our separate living arrangements and express that clearly. I've already given him a deadline, but I don't think he fully grasps my feelings. I feel I need to emphasize that if we aren't married by that time, I'll have to end the relationship. He's struggling to choose between me and his family, but for me, following Allah's guidance comes first. Please understand that I'm well aware of the challenges here, and I know the current situation is not aligned with Islamic principles, especially during Ramadan. I don't need reminders about that-I'm already seeking a halal resolution.