Hi Numbian 3,
I think you will do just fine, u should have a nice experience there...if you are looking for "life in the wild" with exquisite touristic places i'm sure you will be served, if your boyfriend knows his way around the country well. On the other hand, if you are looking for sophisticated life experience, it might not be that great, u know it's an African country.
As you know it's a french speaking country but some people do speak English. You will probably meet a lot of Americans, usually at the touristic centers.
For the marry life, well each experience is unique but in general you should have fun with the traditional ceremonies and dance parties :-)
Have a nice trip and if any more questions do not hesitate contacting me on my above mentioned facebook account.
Cheers
Kevin