So here's a question: if you had to marry him tomorrow, would you?
I'm asking because you mention "strengthening your relationship". Fiancé visas are for people who want to get married. Not potentially want to get married. I know the wait times are much longer than they used to be and that's often why people contemplate a CR1 due to similar timelines, but if this person isn't actually your fiancé right now, why are you considering this?
You should be sure you want to spend the rest of your life together with this person because the immigration journey is definitely not easy, it's definitely not cheap and it's not for the faint of heart. You're asking this person who you aren't yet sure whether or not you want to marry to pack up their whole life and move to a country which has an entirely different cultural profile and arguably has a lot of prejudiced people towards Muslims. Would you do the reverse, pack up your life and move to Morocco tomorrow?
I'm legitimately not trying to be a facetious jerk. These are serious considerations you NEED to make. This isn't toss an application into the mix and hope it all works out. Immigration is a privilege, not a right, so that needs to be kept in the the back of one's mind when making such a serious request.