My trope-senses say that black haired guys gonna be the ml; kinda disappointed as I was hoping they'd split the difference age wise and set her up with someone at least in his mid-thirties, or maybe go full daddy forties. Have both of them hesitate to get together since they're Both too old for each other. Have her call him Young Man- that kinda thing.
At most I now hope black hair is also reincarnated- her dead ally or the hero(who died after her grew older as well)