Raven really would be more okay with "it's Vincent's secret" if it didn't obviously involve Yuri's feelings about himself! He doesn't necessarily want to interfere with Vincent/their relationship more than the minimum of diplomacy necessary. But Yuri stabbed himself in the foot in public and said it was specifically because he had stabbed Vincent, which means that it is not something that is just Vincent's problem or something that is just between them, it is something that Yuri has internalized and which has added to his self-hatred, or at least his unfortunately cavalier attitude toward his own well-being. :|

Anyway, no, he wouldn't. Or, well, he certainly wouldn't intend to. Raven is very set on non-interference in hearts in general, and he certainly wouldn't set out to change Yuri's feelings in an unnatural way that might have unintended consequences. THAT SAID his ability to stick with this non-interference principle in the face of dramatic heart circumstances is pretty limited. (See, almost getting himself killed arguing with Ferris' brother in her heart, almost having a threesome with Misato in her heart.) If he ran into Vincent hurting Yuri in Yuri's heart he probably wouldn't think about it that hard.

Okay so what would Yuri do if hypothetically Raven took this turning things around all the way and let Beatrice hurt him and then told Yuri about it. :'D