Bubbles in particular needs a friendship more than she needs romance, as I see it. She has lost the bond with her squad. She needs emotional support as she experiments with being in the world. Romance could come later.
I quite agree. Bubbles was basically shut down emotionally for some time. She had lost her squad. Even though it was not her fault, I think she feels that she failed them. So it's been difficult for her to allow someone else to trust
her. Then she trusted Corpse Witch to help her, only to get blackmailed instead, making it nigh impossible for
her to trust anyone
else. Now that someone has finally come along who has been dedicated and patient enough to trust her and earn
her trust, and to forge a friendship, her emotions have been re-awakened at an intense level.
Unquestionably, she and Faye love each other. That much was obvious even before there was any hint of romantic interest from either of them. Yes, it is entirely possible that this has become romantic love, but it is equally possible that they are both mistaking these sudden intense emotions for romance, when it is only a very strong friendship. For them to jump into a romantic relationship headfirst as soon as they have realized that it is a possibility is a huge risk for both of them. I've been there and made that mistake. Hopefully, now that the envelope is open, as it were, they can take it slow and see how the letter unfolds.