Murky Waters with my Primary Care Provider

I find it difficult to get a straight answer from my primary care provider regarding my safety and Covid. I have had three Pfizer vaccines and my Covid anti-bodies look pretty good, but my WBC is low. I ask if I am safe to go to public places, like a restaurant and they cannot give me a straight answer. I know it's a tough call since there is still research being conducted when it comes to Covid and RA.

I sent a message to my PCP asking if it's safe for me to attend a private dinner in a restaurant next week with my vaccinated co-workers. His response is, maybe, but I will be more susceptible to Covid infection if my RA is acting up. It's always acting up to some degree.

I may have the antibodies, but my WBC is low. What happens if I become a breakthrough case? Will my symptoms be more severe than someone without RA due to being immunosuppressed?

I'm fearful of going but are my concerns justified? I feel like everyone is moving forward with life and I'm clinging to the boat afraid to jump in the water.