I always appreciate when characters who are supposed to be yuri fans feel like they're yuri fans. The attitude of "no, don't get in the way!" is very much the mindset of a yuri fan. I also appreciate that it said girl x girl "relationships" and not romance. Very accurate.
Now if only people in the west would stop with the weird definitions of "Shoujo Ai" and "Yuri." I hate that this bothers me so much, but I just can't help it. This manga, like most of the manga in the shoujo ai tag, is yuri.