10- how vulnerable are they with each other and when are they the most open with e/o
13- what is it that they need the most from their partner and do they find it easy to ask for it
38- how does jealousy manifest in their relationship and how do they usually handle it
51- what is a boundary in the relationship that they would never cross
10) Not very. For Lu though, he rarely shows anyone other than Zath anything remotely close to vulnerability. Even showing it to Zath is often still beneath a masked layer. However, when they can't see each other well is when they allow themselves to be vulnerable. Serious conversations are mostly had in darkness/low light.
13) Zath needs love the most, and Lu needs loyalty the most. Zath finds it difficult and has never asked for it directly. Lu finds it easy and receives it constantly.
38) Zath gets jealous in a particular way. Basically, if he thinks he's being replaced, and specifically replaced as Lucien's lackey, then he'll start getting outright territorial and aggressive. And as far as I've worked out, Lu would be likely to get controlling if he feels Zath is no longer abiding by his wishes. Lu just ... doesn't really consciously acknowledge the depth of their relationship? So he wouldn't register it as jealousy.
51) Hard to say, because they do cross each other's boundaries a lot, and I can't say "never" without a massive asterisk. Additionally, Zath only really communicates his boundaries once they've already been crossed, and he doesn't communicate them well even then. THAT BEING SAID, for Zath, he doesn't ever talk with others about Lu's private affairs, and he doesn't ever make any reference to Lu's mother (... except for that one time and it didn't go well). As for Lu, he knows Zath's biggest anxiety is replacement and abandonment, so he normally tries to tread carefully there.
