I have generalized anxiety disorder. Social gatherings to me are worst than hell. Especially weddings. Hopefully she will understand.

I've only been to two weddings in my life so I'm not all that familiar with wedding etiquette, so please forgive me if this is a stupid (or obvious) question. I just started dating a man I've been friends with for a couple years about 2 months ago. He's 29, I'm 27. His family lives in Maine and we live in New York. His sister is getting married (in Maine) in August and my boyfriend will be officiating the ceremony (he had to get a certificate to do this). He's also supposed to be a groomsmen but of course his main role will be marrying them! I've never met his parents or family since we've just started dating and we live 6 hours south of them. I would love to meet his family and attend the wedding as his guest but I'm not even sure he has a plus one (not sure if his invite allows a plus one or if he wouldn't have one anyway since he is officiating the ceremony). He has not mentioned anything and I don't want to ask yet since it's not even June, and the ceremony is late August. Do you think he will invite me or would it be inappropriate or unrealistic given his roles in the wedding?