i remember this one BL manhwa ive read before but i only remember a bit of it.. does anybo...

i remember this one BL manhwa ive read before but i only remember a bit of it.. does anybody know the title?

from what i remember, it's an omegaverse with an ml w blonde hair. i think there's a scenario where the mc was about to off himself in a bridge however the ml saved him and he acc has some feelings for the mc (?), he suddenly asked mc to marry him for benefits. (newlyweds in their verse receives benefits as long as they meet an affection quota, like touching and stuff..)