Almost every major female cast member in the franchise has a love interest with a male cast member. Chapel and Spock. Crusher and Picard. Troi and Riker. Troi and Worf. Jadzia and Worf. Kira and Odo. Kes and Neelix. Torres and Paris. Seven and Chakotay. T’Pol and Tucker. NuUhura and NuSpock.
Janeway never had such a relationship with a male cast member, but then she was captain of the ship and married, so it would have been almost impossible.
Hoshi Sato also didn’t.
Have I missed anybody?
What accounts for this pattern?
If NuUhura-NuSpock doesn’t count, then Uhura also didn’t have such a relationship, which establishes (weakly, with only two data points) another pattern: the only non-captain females who weren’t put into such relationships are also the only two females who weren’t white.
First of all, your thread title appears to belittle female characters who take an interest in male colleagues or get romantically involved with men.
Secondly, Janeway wasn't married. She was engaged when she left to track down the Maquis in "Caretaker." Later in the series, when communication with Earth became possible, she learned that her fiance had married someone else. Oh, and yes, it hurt.
Let's look at the relationships you cited:
Chapel: So she was infatuated with Spock. Nothing ever came of it and yet she apparently managed to move on and have a successful career as a doctor.
Kira: If I recall correctly, Kira was second in command to Sisko so she was in charge when he was away. She also struck me as pretty independent, and she certainly didn't see herself as nothing without a man. And BTW, Odo was in love with Kira years before they got involved. And when he returned to his people, she let him go and returned to the station where, with the disappearance of Sisko, she was in charge.
Crusher: Yes, she and Picard were close -- they had a history. But other than the off-screen marriage in "All Good Things" that ended in divorce, Crusher appears to be quite accomplished thoughout the series with being chained to a man.
Kes: Uh, she broke up with Neelix. Obviously she didn't think she was "nothing without a man" either.
Deanna: You appear to have confused her with her mother. Lwaxana was the man-hungry Troi.
Jadzia: Also an indepedent personality.
Torres: My goodness. Chief engineer aboard Voyager. Half Klingon. Again, I doubt she felt worthless without a hardbody in the room.
T'Pol:
You cannot possibly be serious. Did you ever watch Enterprise? If you had, you would realize that T'Pol called the shots in her "needy" relationship with Tucker. She initiated any kiss they shared and she decided when it was time for them to have sex.
Seven: Since I can't explain where the relationship came from, I'm at a loss on this one.
NuUhura: I don't discount this one.
Hoshi: I don't recall her pining away for a man (tho' I did 'ship for Hoshi and Malcolm). I think given another 3 years of ENT, we would have seen her involved with someone, but not because she "needed" a man to complete herself.
So, explain something to me: Is a man without a woman "nothing"?