I honestly don’t think that they want a war with Hezbollah, but I don’t know if they know how to de-escalate it. Both sides have been trying to keep things ”even” in their exchanges but that kind of policy always leads to escalation.
Hezbollah just killed a bunch of kids in Israel, which I don’t think was the intent (they aren’t exactly itching for a war with Israel either). But how long can you keep firing rockets at civilians before you kill someone? Then Israel has to respond.