Lol! You will obviously have no reason to distrust the...

Lol! You will obviously have no reason to distrust the information about Boris if it came from the Ukranian media. Here it is for you.

As soon as the Ukrainian negotiators and Abramovich/Medinsky, following the outcome of Istanbul, had agreed on the structure of a future possible agreement in general terms, UK Prime Minister Boris Johnson appeared in Kyiv almost without warning.
"Johnson brought two simple messages to Kyiv. The first is that Putin is a war criminal; he should be pressured, not negotiated with. And the second is that even if Ukraine is ready to sign some agreements on guarantees with Putin, they are not. We can sign [an agreement] with you [Ukraine], but not with him. Anyway, he will screw everyone over", is how one of Zelenskyy's close associates summed up the essence of Johnson's visit.

From Zelenskyy's ''surrender'' to Putin's surrender: how the negotiations with Russia are going | Ukrainska Pravda