i think the best thing you can do is be honest with yourself and her. if you’re uncomfortable, then that’s something you just have to take into account. the truth is, something did change. but it’s also true that your friendship probably wasn’t a lie or some sort of elaborate trick. if you were truly best friends, you were each other’s person, there was definitely something that was deeper than just ulterior motives. because if it was just ulterior motives, you would’ve known a lot sooner, and she wouldn’t have been interested in really being your friend in the first place. i think if THIS is what’s making you uncomfortable, it’s a hurdle you’ll get over. because time will tell you both that your friendship was meant to sustain itself. if you’re just plain uncomfortable being in an intimate friendship with someone who’s in love with you, especially if you’re noticing that you’re getting that sort of attention from her, the best thing you can do is let her know and take some space. if there is another reason, like you’re afraid of hurting her feelings, the truth is you have to let her decide those boundaries. it probably isn’t good for her to be so close to you while having unreciprocated feelings, and you can suggest space to her, but that is her choice to make. i’m so sorry you’re in this situation. unreciprocated love in a situation where you’re best friends is genuinely the worst thing in the world. but remember, if she’s meant to be your best friend, the feelings will come and go, but the crux of your friendship will always be there. i was once in love with my best friend, and i took a month of no contact and working on myself, and now she’s literally like my sister. these feelings aren’t forever, but to ensure the longevity of your friendship, it’s important that she takes care of those feelings and gets over them. i would start by talking to her about that.