[nodding] Archer said that the others couldn't come. Since he's the one who threw his party, it didn't seem right to ask if they wanted to go with me.

[In the end, she's alone.... (Or maybe Rider's GOING GHOST and hanging in the bg like she does for half the VN. Probably not though.) She doesn't think Saber would be concerned about Rider, maybe aside from a potential enemy kind of way, but she figures that she might as well mention both of them.]