Mrs Dewi is like Tsukasa's mother from Hana Yori Dango
Itou Yukari is so pretty despite being 66 and she used to be so gorgeous back in her 20's
Coming back to Maro, not telling Ayu about the wife and kid seems even more cruel with the gossips about him actually being married and having kids, what if Ayu heard the rumors long time ago and asked him and he said it's not true somewhere in the past and then once they started dating he decided to be honest. Or maybe Ayu wanted another quick wedding and he has to tell her
Anyway, he must be really 'hurt' that he's not he boyfriend anymore, he's too desparate in showing his version of what happened / bash Ayu as if not bashing her (because despite him not saying anything bad the very fact that he keeps the interest about their breaking up is similar to bashing for me).