The girls are in an established relationship more often than not all three would sleep together as three in a bed but on occasion one would sleep alone, and its as much a sexual relationship as an emotional one, for Angela and Emily the sexual side would be more a lack of viable male options whereas Riley has until now not found a male that appeals and she has her own experiences to overcome.<br/><br/>Now that Tom is eighteen he's become a viable option physically...and at least one of the ladies is ready to jump on him as much as he's ready to jump on any of them... that female was most likely going to be Emily<br/><br/>The emotional side of things is a lot more complex the three ladies have a deep bond formed by the circumstances of their world and their love for each other is as genuine as any loving relationship of six years would be they are effectively wives to each other .....however their emotional connection to Tom is that of (at best) older sisters and there have been times when they have had to effectively be mothers to him especially in the immediate aftermath of the disappearance...to see him as a 'husband' is going to take a monumental shift emotionally