well Jeffrey is a good candidate but lacking... you know the ML trope that they don't wait? That is why I say this... He has witness her first lifetime and wasted her (both theirs) time... Most Ml's candidate or not don't waste time when it comes to their love ones... Once they know/confirm they have feelings for another they aggressively attack/confronts their prey... In that sense 3rd disciple and 5th disciple fit the bill more...
I agree to an extent, but keep in mind that he loved someone SIGNIFICANTLY older than him when she was alive as Charlotte. He was in his 40s and she was like 100 and something. Now she’s younger than him. Though she still has the thought process of an older lady, he now has a chance with her because the ages are better. Though now she’s a lot younger than him lol. But does that really matter in this time period?
so the power dynamics in ch1 was they're all injured thanks to the calamity and ready to retreat as advice by her master... But she created a miracle in Jeffrey's point of view in the following chapters turned out to be a curse in exchange for that miracle defeating calamity (demon king)... So it was luck...
So in a sense since Charlotte without the miracle that happened that day, Jeffrey is stronger than her according to her since she never won when they spar...
this author is good, my mind already set on 5th disciple (possible demon king) and yet this chapter make me wanna sway with Jeffrey... but Jeffrey has the trope of the 2nd ml established... what a confusing chapter... either way not everything is set on stone yet...