Board Thread:Questions and Answers/@comment-197.87.149.237-20150131062759/@comment-94.64.69.107-20160102042832

Well Snake obviously did believe EVA's debriefing,he went to her grave and saluted her for the last time before actually crying and even abandoned America cause of what the US made The Boss go through (at least thats how i took the abandonment). In Peace Walker i think that he just isn't sure,he wants to believe she was the hero that i still think/know she is but he is so untrustful of the world he was born into,he hates every country with passion because of all the lies that his life was based on. His view on the world was absolutely turned around,the world he once knew made a 180,with so much information to take i think it was obvious that he was confused,he didn't have any reason to believe EVA other than to trust her and we know how trust ended up for him and The Boss.

If that isn't the case and he whole-heartedly accepts the EVA's debrief then i am pretty sure he is just desperately fighting himself trying not to reveal The Boss' secret,probably for her and not for the US's benefits.