Plot twist, the youtubers are nice.
The main issue is still that the youtubers are youtubers while the main pair is on a crime run. Yumi isn't even a good fake name.
It's fun how they subverted the motorcycle chase by getting stuck in traffic and using that as a chance for Yuri to open more. When it comes to difficult experiences, it can be easier for some people to talk to a stranger than someone they're close with.
Acting differently with different people is typical of I think all people. Being more assertive around someone you don't feel threatened by is not confusing to me. I still feel bad for Atsuko because Yuri is about to tsundere at Atsuko more after creating a situation where Atsuko felt vulnerable, threatened and scared for Yuri's well being. That sort of pent up frustration with someone who you care about and who is an abusive relationship for not protecting themselves must be very common. Same for the person who is being abused fearing judgement and blame for allowing that situation to happen at all, thereby leading them to question their own support network.