After the end of the last home game of last season, the players did their customary walk around the pitch. I don't think I'm mistaken in saying that I saw MON walk up to Harewood, pat him on the back and shake his hand, seemingly wishing him well. I don't think Martin held a grudge in Marlon's case, he just clearly didn't think he was up to it.
He can talk all he likes about how much he just wanted to play football, but talk is cheap when he could have pushed for a move much sooner and no doubt facilitated one by agreeing to the wages he's probably now on. But players like to draw their wages for the length of their contracts and then have their cake and eat it and complain about not being able to play too.
Good Luck to him, but I'd have been more impressed if he'd pushed for a move much sooner.