Board Thread:The Flash discussions/@comment-4036559-20181010183851/@comment-26537965-20181011123300

Kir the Wizard wrote:

It is heavily implied that this was when he time travelled back to 2000 to stop Thawne from killing his younger self. I mean, we know he was battling Thawne, when he disappeared, so this is where they likely went to. Yep, the question is: why didn't he come back? Perhaps it's the Flashpoint, since we haven't seen the Bright Red Suit Barry last time (and instead, Eobard was the one to kill Nora and bring Our Barry to 2016). The reason we did not see him was because he had already left. By the time Season 2 Barry qappeared, future Barry had saved his younger self and had left. Then Season 2 Barry knocks out Thawne, but then  Post-Flashpoint Thawne arrives and kills her.