Hello, I'm using MC [1.7.2] and MCA [4.1.1] and some things that happened twice to my fiancée:

• [Dissapearing armor] - Equipped fiancée with an enchanted (protection I) full diamond armor. After opening a few times her inventory (I was trying to give her something to hold), the whole armor dissapeared leaving her armorless.
  *[Lost of affection points] - After returning (teleporting back) from a dungeon my fiancée had 108 affection points when she had about 400. Maybe she just dont love me anymore :(.

And well, I was wondering if villagers could respawn (revive or at least the option to revive some) since mobs end killing em all after a few days ending in ghost villages. This happens a lot after I find villages, when I come back to visit them, they are all dead (I come back to steal da girls :D since mine usually die, thats why I try to equip my whole family with the best armors).

Villagers can't respawn unfortunately.

I'll look into the other issues., but note that giving villager enchanted items can cause odd issues because the enchantments won't be saved.

I see, thank you very much for answering me. I really like MCA (once you try it you cant go back to those squidface villagers) so Im going to see if that keeps happening (and avoid using enchanted armors) since it happened twice. From the bottom of my heart, thx a lot.