I remember one time my BFF (blonde girl same age as me) and I were both in ruts after horrible breakups in college. We made it a thing to go to Applebee's and get sloshed on the weekends, where people would make comments like we were such a cute couple. This was a weekly thing to pass the time which was better than moping alone.

One time though she said something along the lines of "you need to get more drunk so I can take you back to my place and take advantage of you." My eyebrows shot up so fast and I was absolutely flabbergasted because despite some intermittent flirting between us over the years there has never been a crossing out of the very deep friend zone both of us had each other in. Nothing happened, I brushed it off, and we moved on. She got married, I got married, and she was my best (Wo)man. Definitely better that the line was never crossed, even if the opportunity was there.