In the process of renovating my mom's house. I'm pretty knowledgeable but I'm stuck on one bit. Where the blue is she's requesting the wall be cut in half to allow for a bar counter top. The wall above the door appears to be a header. Her attic is more of a crawl space, so from as much as I can tell the joist run with the red lines. Where my confusion lies is 3 or 4 years ago she had a contractor expand her bedroom on the other side of the house with a wall that has the same orientation as the blue(and parallel in position of the house). He claimed that the wall he took out was not load bearing, and as far as I can tell 3 years on he's right. In order to accomplish the bar that she wants I would have to take the blue out, including what I assume is a support beam for that header.

The prior contractor taking out another internal wall with the same orientation and position in the house has me questioning if the header was just put in by a previous home owner for aesthetic purposes or actual structural reasons. And advice is appreciated