People were speculating on their legends group that she hadn't invited him! They're also pretty cheesed off that 'Joel & Lia' has pretty much gone down the pan and they've put no effort in at all.
I didn't qatch the video but I saw on Joel's thread, was surprised to see it was he who quit tbh, ahe sort of has another career with the house development thing (although with mortgages as they are god knows how that's going now)
You can tell from Lia's face in the announcement video that she is monumentally pissed off with Joel. Probably the reason he never went to her wedding.