At the very least, theirs was a friendship of unusual ardor.
Terms like “acquaintance”, “friend”, and “lover” tend to denote defined roles. This makes for convenient social constructs, where we have an idea of the nature of the relationship, even when not directly involved. Responsibilities of one group — care, affection, respect, commitment, trust, will to cooperate — don’t often overlap with another. When they do, terms like “work wife” or “friend with benefits” might be used; re-characterizations of previous terms for a lack of better ones.
It took me longer than I’d like to admit before I realized how rarely relationships can be so neatly labelled. Not every “friend” considers it an honour to be trusted with the spare set of house keys (and would I really consider them a friend if they’re not to be relied on in an emergency?). Not every romantic partner is interested in exclusivity or commitment. Not every sexual encounter goes as far as penetration, or even contact (which is why it’s possible to have an affair of the heart).
Suffering the loss of many important people has also taught me that relationships often evolve, as we grow and circumstances change. Whether it was due to some breaking point or simply the passage of time, most of my significant relationships have come and gone. Now I can’t help but tread carefully when I’m about to invest my emotions in someone, whether that means prioritizing them in my life, opening up with my secrets, or letting myself like them; that’s when I’m as scared of being hurt as I am of losing them.