I think you're so far into the process and post-D life that meeting the bf shouldn't be as big of a deal compared to when she told you that she had a bf. I met exW's bf for coffee first one-on-one and that kinda paved the way. Gave me a chance to get first impressions and also let him know certain things. It was pretty amicable and I left feeling better.
Why on earth? The thought of meeting my XWs bf hasn't even crossed my mind once. I have no interest in getting to know this person and nothing important what I would want or need to say comes to my mind.
In my thirties, BDd 2017, divorced 2 young kids new relationship