So she’s both of their best possible outcomes..the only difference is if she chooses red...

True but it looks like he gets betrayed either way cause in the other guys vision the red head still has the object he’s looking for

This is just my guess, but I think it’s more likely that she will be with the black haired guy since she has a vision where she’s getting real intimate with him and possibly has children with him. In the red head’s vision, I think he may develop unrequited feelings for her- and he might be like an uncle to her kids. Cause I don’t see them actually being intimate with him.