Assuming everyone knew each other. If a girl liked a guy but the guy liked he liked a different girl and she wanted to move in on it anyway, name somethings she would do to get in the way and prevent them from getting into a relationship.
PS, this new gag arrangement having to deal with past questions before you can ask a new one is too much of a hassle making things very inconvenient, soon it's just not going to be worth it.
Most Helpful Girl
Why would you be asking about an other person and why does he want to prevent them from getting into a relationship? That is selfish and vile.1
Most Helpful Guy
you don't 'get in the way and prevent them getting in a relationship', because this makes you a shitty person, aside from all the personal reasons to avoid that, it'll spoil the relationship you want to build with that person - there'll be no trust and probably no compatibility (because you did a shitty thing).
If you want this guy, tell him you like him and ask him out, after that balls entirely in his court, if you force the issue you make 3 people miserable including yourself1