Personally, I had a strong feeling that Inter did not really want to keep Lukaku and took advantage of the first occasion that came along, such as Lukaku's personal contacts with Juventus, not to make this deal. Lukaku's playing reputation is ambiguous now, and therefore I even wonder why Juventus suddenly decided to join the fight for the player.
No, Inter is still want to keep Lukaku, but they just want don't want to spend huge money to sign him. It's all depend on Lukaku decision whether he want to join Inter or Juventus, Juventus have offer better monthly salary and higher bid for Chelsea. I think the reason is Juventus don't have any other good striker except Vlahovic, so Lukaku can be a substitute player. There's a rumor where Vlahovic will join PSG or Arsenal, so that's why they're looking for a new striker.
The situation with Lukaku is still not clear. Few days ago, I read that he will resume training as a Chelsea player for preseasons and that Inter Milan had withdrawn from signing him and it is also not certain if he will want to move to Juventus because he might consider that move as betraying his former club. What decision he will make remains a mystery to all and I hope he makes the right one for the sake of his career.