Okay... I guess, my statement was confusing (very). I am answering both you and Thome.
I think, from what I have seen of people, that most folks do end up with a life partner some time in their life. And if you are lucky--which hopefully most of you are--it would be great for you.
However, there are times in your life when your focus is on your career, or you have other aspirations. Yes, love happens unexpectedly even then, but a look at how someone can be happy for a time being a single woman (or man) and focusing on certain other matters--how to be a good journalist, for example-- would be nice; especially since most other shows are tangled up in romance.
In this season, people have fallen in love in a matter of weeks. For no particularly good reason as far as I can see.
I don't think it weakens her.
I think it weakens the story.
Because stories are not always the same as real-life. It has elements of real-life but is much more coherent and in case of superheroes, is larger than life. Having her fall in love so fast is not I think good for a seven-season run. Having a will they won't they thing go on with unnecessary obstacles set before them (like the one used in this episode) is even worse.
And this story purports to be something of a hero for young women and boys who are willing to look beyond gender.
Not all young women and men are looking for love. Not all of them think that it is necessary for their current happiness (in some cases, even future happiness). To suggest story-wise that it is so; and that is what they did the past couple of episodes--that Kara needs love to be fulfilled--is reinforcing the idea among young people that it is indeed so. That if you are single, there is indeed something lacking in your life. And that if you are happy being single, then you are quite abnormal or you are trying to make up for that lack by focusing on other things--after all, that is what Alex suggested to Kara in the Feb 6 episode. That she is not sad because she is missing Alex; she is sad because she is missing Mon El. Nice!
How many folks--teens as well as older folks--date because of peer pressure or cultural pressure and not because they really like someone?
That she is lonely I can understand. That falling in love is the way to deal with that loneliness, I don't. Especially since her friends and sis have been kind of ignoring her.
And also since work is also a form of fulfillment that this season hasn't focused on at all. (All her reporting work has been about interviewing Lena; except for that one time when she tracks down the missing folks; I think she is the Lena beat.)
Also, while we are at it:
That she would fall in love with Mon El just because he is funny and he is in love with her and he has been pining for her (half the past two episodes were about how he is pining for her) and is not quite as bad as she was taught or expected; that is a weird reason for falling in love and an even weirder message to send to people. Not to mention cliched. I have seen scores of movies where girls fall in love with guys just because they are like Mon El. Kind of arrogant, uncaring except for about themselves and jerkish at first, and then being all nice because they kind of like the girl who is a proponent of stuff and then bingo, the girl is in love back. Nice again! How much does it happen in real life, I have no idea (we Indians mostly go for arranged marriages.
).
If on the other hand: The season had focused on Mon El's otherwordliness and adjusting to life--not just for comic effect--but exploring it more deeply, in making him adjust to James, Winn, J'onn, DEO instead of having him just follow around Kara, have Kara focus a bit on her career, instead of focusing her time on Mon El most of the time, then we could have had a better story in my opinion.
t: And we've only just started the second half of the season. 
.
