Just to clear out some mechanics:
Do you know your lover? Do they know you? Is it like Cultseen faction where you know who is who? I suppose you don’t share a night room? - even though that would be flavorful.
The Extreme Measures that bleeds and cancels votes seems a bit too powerful. First of all it almost doubles the amounts of bleeds evil classes have, making it very difficult for healers to keep up, especially while protecting high priority BD targets. Further difficult if there are few healers or only Chronomancers.
Poison Goblet: Does this function any different from a standard attack? Like Butler’s Poisoned Wine that can only be Healed/Delayed? I imagine not and that it’s just a flavorful description.
Their win condition changes to: Defeat all enemy factions that oppose your Juliet ? Do they win if they die or do they have to stay alive to win with Juliet? If so that makes this the hardest win condition in the game.
What if Juliet gets Executed? Is the lover then just hanging around without a way to win? Or could they possibly win by themselves? Do they commit suicide? Perhaps they take up a vengeful role, changes class and becomes a DI-less killer? That last one kinda necessitates that the Lover cannot be converted.
What happens if a Lover gets converted?
Can a lover be a heretic?
Pulling a BD out from day 1 is not a major problem, but between 3 neuts, EK and now Juliet lover, that leaves a BD team of 9. Factor in 2 kills from the first night by Assa & NK and BD is most likely at 7. In these games BD cannot win without some ludicrous luck.
Perhaps it would be more random if any non-Cultseen, non-starting King could be the Lover. So just adding neuts to the mix and Hunter - why would Hunter be exempt?
The class of your Lover also has a very large impact on how the game might work out.
If you get a Butler, you can have them basically becomes a Sellsword that can also poison a potential EK.
If you get a Physician, you’re basically stuck with a Fool that can only confirm themselves by opposing your win condition - whether that is to heal your Extreme Measures (could be a good thing to hard-confirm a phys claim) or to heal the Cultseen’s targets/bleeds.
If you get a Chronomancer it could potentially be useful by transferring deaths to high priority BDs at the right time.
If you get any invests, it’s basically a useless Lover and one that Cultseen is more likely to want dead. Social are likewise useless but is not that magnetic to daggers. Invests can still be utilized to cover for your claim, but like we see with convert invests, it can backfire quickly. One advantage is that killing a Lover don’t necessarily reveal that they are a Lover.
Getting a Knight is mostly awkward as they cannot CS for you unless it’s to deal with guaranteed Cultseen or problematic neuts. If the Lover Knight hits a BD and suicides it would seem they lose their win condition, so it’s very risky to make that bet. You might end up throwing your own win, just to have your Juliet win. A knight defending their lover could be a way to deflect that Cultseen gets to know the identity of your Juliet - could actually be quite useful for late game.
Getting a CW as Lover with the new CW changes is somewhat interesting, as they can cover for you if you get attacked by claiming they cast Intensify with Icy Veins (OCC immunity + death immunity) - two statuses you naturally have.
Getting a Drunk is like the Butler a fair enough target.
Borderline it feels like Phys, (Chrono), (Noble), Mystic, Maid, Princess, Sheriff/Pala, and (Observer) are less useful. Chrono, Noble and Obs have some applications but may be marginal. Chrono with transfer death, Noble with Force Vote and Obs to hard-confirm innocence.
The better options would be Butler, Drunk and Knight - basically all the K/O classes - and then CW due to swaps and the OCC Imm / DI check.
If we add neuts as Lovers, then all but Fool is good Lovers. Alch probably the best because they can attack and they can protect themselves from Cultseen and that BD usually wants Alchs alive.
Overall: Interesting idea, but it does have a few kinks that might need to get worked out first.