According to New York Daily News, Lebron James might be pushing Cavaliers to acquire Carmelo, even if that meant Kevin Love to be included in the trade.
The Cavs, though, have denied that Lebron is forcing them to go for Carmelo.

Everybody knows that Carmelo and Lebron are good friends, but it is not clear what benefits would bring Anthony in the case of using Kevin Love in the trade.
Though the Knicks player has a no-trade clause in his contract, rumours say he would agree to lift that clause in case of being traded to Cavs, a strong contender for the NBA ring and current champion. Besides, being a 32 year old player, it seems that this might be one of his last opportunities to catch a train bringing him to an NBA championship.

Source: Carmelo-trade