just the opposite which

Can anyone help me about the following passage? We’re walking a tightrope in that country, giving the king every assurance but encouraging him to be decisive. He has been just the opposite which has aggravated an already bad situation.

the phrase in bold is especially problematic. The reference of the pronoun "which" is uknown for me. Thanks very much.

Solution 1:

I believe this example below will explain well.

from WHICH | meaning in the Cambridge English Dictionary:

used to add extra information to a previous clause, in writing usually after a comma:

He showed me round the town, which was very kind of him.

So your sentence means:

He has been just the opposite, which has aggravated an already bad situation.

Usually there's a comma.