Hi SC, I think there's two things you need to consider there:
1- regardless of how much you want to be with your boyfriend and of what terms he has set to you, the way you go on about sobering up has to be the one that works the best for you to get and stay sober for years, not in 1 or 6 weeks only. You need to do this for you and for you only, people around you will benefit accordingly.
2- as cheesy as it sounds, if you work on yourself and this relationship is meant to be, then at some point it will. If your idea of where you want to be in 6 weeks is different to his, but in 6 months you get to an awesome place which is better than he expected because you recovered at your own pace, who is to say he will not want to be with you again then?
Stay strong with your recovery, day 2 is a great achievement, let your body detox and then see who do you want to be and build a plan to get there.
We're here to help you all along and there's plenty of other sources out there.
You can do this.
P