User blog comment:TheSpeedyBrainiac/Snowbarry and WestAllen/@comment-27700324-20180226135207

There is a problem with having both in a relationship with Barry. Season 3 would certainly be worse off if not only did Cait hate Barry after Flashpoint, but was in a relationship with him.

While yes, there are problems with Iris. Her constant need to be the kind of partner that joins into her partners activities isn't always the best for example. However her support of his actions no matter what the consequences is why i think nobody has asked for her dead yet.