All's Fair in Love and Nuclear War

All's Fair in Love and Nuclear War is an overseer quest and part of The Book of Wuv multi-stage questline in Fallout Shelter.

Walkthrough
Upon reaching the site, pass through to the second room, which will trigger a fight with mole rats. Once they have been eliminated there are two lootable containers. In the next room are 3 dwellers who advise that there aren't many singles here and the dwellers below don't seem to really be dwellers at all. Responding with "Maybe those disruptive Dwellers should be asked to leave," will result in them giving the party a Nuka-Cola Quantum. Pass through this room and head down the elevator to the first basement level.

On this level the first room contains radroaches. Continuing into the next room there are 2 lootable chests, another chest and another radroach encounter are in the room following this. The final room is empty and the elevator is just beyond this.

The first room in the second basement level contains a single chest, continue through to the larger second room where the party will encounter a group of radroaches lead by a glowing radroach. In the next room are the suitors; answering them with anything other than "Pfft, there are many more singles over at Vault 332. Like, tons," will result in having to fight them. The end of this conversation, or the optional fight will complete the dissuade rival suitors objective. Head down to the room below and speak to the dweller here to complete meet that special someone and the quest itself. Either return to the vault or continue through the rooms to the bottom level to search for more items.

Behind the scenes
The quests name is a play on the common phrase "All's fair in love and war".