Dunno about that.
When it finally dawns on the Ulrainians that the West got more than 100,000 of their best men killed just to bleed Russia, they may be in a less-than-forgiving mood...
Even if that was the case, do you think that the Ukrainians will forgive and forget? We're all Slav brothers? I don't think so. They might be mad at the west, but they will hate Russia.