It just came to me now whilst watching last nights episode.
Lauren got a piece of jewellery - Joel had a receipt for an expensive piece of jewellery he claimed was for cuff links and then he said it was actually for his daughter.
The linguistics expert that analysed Roy’s text messages said the text messages were grammatically well written so couldn’t be discounted as sent from Roy - Joel is a solicitor so I’m assuming he is writes well.
Also what is the point of him suddenly appearing in Corrie and being seen regularly unless he has an important storyline?
This is all I have so far, what does everyone else think?