Who may enter a love relationship with Sera? You can romance with Sera only if you play as a female, regardless of your race. This means that the relationship is going to be a homosexual one. If you play as a male, you will only be able to flirt with Sera without any serious effects to relations with this character.
Note - If your race is qunari, it is going to be easier to win points of positive relationship with Sera. Elves, on the other hand, are ones that gain favor with her the slowest, which does not mean that they are without chances.
How to build positive relations with Sera? During all of the conversations participated by Sera (regardless of whether you talk eye-to eye, or with more characters ), pick the dialogue options connected with solving problems by means of warring a punishment (sentences passed at the Skyhold). Sera also likes witty comments, especially ones that offend nobility. Also, remember to pick all of the dialogue options marked with the heart symbol.
Note - Avoid questioning Sera about her past. This is not the favorite of her topics and you can lose her favor in this way.
More important steps:
- You need to strive for positive relations with Sera (it is a good idea to be affirmative of her ideas to play pranks on the other inhabitants of Skyhold) and mention your willingness to enter a relationship with her during one of the conversations. You will be able to choose if you want to spend a night with her now, or strive for a more stable relationship. At the same time, try to unlock and complete the first of her personal quests- " The Verchiel March.
- During one of the conversations with Sera, she should present you with a headwear. This will unlock another quest connected with her, which is about preparing a gift for her -A Woman Who Wants for Nothing. Talk to everyone in the hold about the possible present for her, especially to Vivienne. Finally, meet with Sera.
- The rest of the romance with Sera is linear. The only exception is the cutscene, in which Sera tells you about her nightmare. You can then decide whether you want to declare love for her and start a relationship (on her rules) or end the romance with her.
- The important piece of information is that the affair with Sera may also end if, towards the end of the main storyline, you claim that your character has been elected the Herald of Andraste. Saying the opposite may help you gain favor with Sera, earlier into the game.