As if Dev, with his ‘chain’? of shops, his golf club membership, his high profile in the Weatherfield business community, would be interested in loud mouth Bernie.
Yes, Dev is the ultimate social climber, and Bernie would never be his 'type'. It's often a problem in soaps that most of the characters are of one 'class' because of the area in which they are set, but they put in different types for balance, and then have to pair everyone up with people with whom they'd have nothing in common in 'real life'.
Billy and Paul, Daniel and Daisy, Ken and Deidre, Sarah and Adam - none of those relationships are very likely, and that's just off the top of my head.