Woah i feel honoured
I would like to add something to the ideas i wrote there (this comes only from my own perception of relationships).
In general I’ve seen that the common approximation to love works it’s like: i will make this person loving my, and somehow magically named targen will be with me. And that might work in some cases but it probably won’t if you haven’t development a relationship in some way with that person or that was broken, because yeah, that person can get interested in you but maybe will never talk to you.
So a good idea could be also work in a friendship development, so you could interact with the person and lately get a relationship with her/him.
In that case there’s some demons that can help:
Belial: friend reconciliation which could help with exes.
Botis: he’s said to turn enemies to friends which could also help with exes situations
Gusion: can make someone to be your friend or reconcile an old friendship.
Barbatos: creates a friendship.
Again, this approximation to love works it’s solely based on my vision about romantic relationships, because i feel that an important part of being with someone in a romantic way, it’s firstly constructing a relationship with them (or reconstruct it in the case of an ex).