User blog comment:Jill-Valentine=A-Boss/ME3 ending really that big of a deal?/@comment-68.193.155.192-20120613060209/@comment-3258762-20120912150559

If you weren't supposed to be emotionally attached, then they probably wouldn't have bothered to put the Virmire Sacrifice in it. That, as many other things in the trilogy, only works if you feel that the characters are real to you.