Grissom - socially awkward, struggles with women, dates here and there, marries Sara. Relationship turns into long-distance marriage, long-distance something, then long-distance separation.
Catherine - divorced, cheated on, dates a corrupt FBI agent.
Warrick - marries, abuses substances, gets a divorce.
Nick - dates a hooker and that's pretty much it.
Sara - flirted with by many, dates a cheater (Hank), marries Grissom. Relationship turns into long-distance marriage, long-distance something, then long-distance separation.
Greg - dates a killer who has some serious identity issues.
Brass - married, cheats, gets a divorce.
Doc Robbins - married, wife gets accused of cheating/murdering a genealogist.
Hodges - suddenly starts scoring chicks like crazy, potential marriage is a green card fraud.
Ecklie - bitter divorce.
Finlay - married (twice). Divorced (twice). Flirts inappropriately in the lab.
DB - happily married, has four kids, a grandchild, and apparently the happy marriage is crumbling.
Det Vartann - divorced, has a kid.
David Phillips - married, has a newborn.
Hmm...