You know what I think its grossly under-rated in fandom? Second loves.
What it's like to love and lose and then love again. To suffer through either the death of a loved one or the death of a love you used to share. To know that loss, to know that hurt, and to still make yourself vulnerable to someone again. To love scared, to love wounded, to love anyway.
By under rated in fandom I mean so often past loves are either erased completely or downplayed like "oh yeah they weren't really in love.". I think it flattens the character. Humans are capable of so much love. Each relationship is different and you can learn from each one! And yes, there's something brave in learning to love again, something incredible romantic, why pass it by?