That's what I think too, Chelsea rejected Inter Milan's loan extension offer not because they wanted to use Lukaku to be included in Pochettino's squad list but to avoid the opportunity to lose more if they don't sell him this season because the price is decreasing because he will get older plus his performance is not as good as expected so it will be difficult for Chelsea to sell him next season, so they are like forcing Inter to buy this player if they still want him, but unfortunately, it seems that money is an obstacle for Inter to buy this player or it could be that Inter only sees Lukaku as such a good reserve player that didn't feel the need to spend money to get him.