Good analysis! As you mentioned, LGX clearly has a passive death wish obsession going on ... it's not good for the people around him--the rest of Yi Zhi Mei, who probably happen to like living.
I'm confused on this point: is LGX never really drunk? He drinks and drinks, but ... I guess he's developed a high tolerance level. Chinese stories really like drunkards who are actually the ones who know what they're doing.