It could just be that you enjoy their attention and don't want to lose that. You havent had freinds for a while so this attention is "nice". Hey, attention is always a high, even in "friendships" so it is normal not to want that jeopordized. But, maybe another guy might have a sister you "would" be attracted to. Often we meet that "special" one through others, so keep an "open mind".

Open Eyes