I went into the asylum and all that but, when I released Najaad, it didn't give me the opportunity to give him alcohol. I had beer, wine, and ale on me because I didn't know what he would want. When I found out I had missed giving it to him, I went back to the asylum, but he is gone. Am I screwed? I have gone too far ahead to have a save from before I released him. If the quest is bugged out, does it affect anything in the game other than that quest (like an achievement or the ability to continue with the main questline)?
Edit: If it matters, I left the asylum after killing Jango to turn in his bounty and put the queen's cup on the pedestal in the archeological dig before I returned to him, so I wouldn't forget about it.