Panda-chan, I'm borrowing your hypothetical situations.

Let's say Person A had friends who were very nice to her, did all sorts of things with her, etc. Could become best friends.
Then Person B and Person C decide to no longer be friends because of a fight.
Person A has to decide between them.

What should she have done?

In the end, she chose to not pick one friend over the other, and try to repair their friendship. The thing is, Persons B and C for some reason decided to no longer be A's friend. And took all of her friends with them.

Leaving her alone.

When she decided to try and make new friends, real ones (for maybe the last ones were not real), she made a couple of other really good ones. Who did everything with her too.

And then, she suddenly realized that those friends are actually a bit spoiled and bratty, and they left her too.

Leaving her alone again.

I kinda know what this feels like and am trying to show her that there are real good friends. Except, she's sorta worried that any new friends will leave her, and therefore has a harder time making real, long friends. She's fine with making a five-minute, let's-do-this-together friend. But other than that, she's sorta scared about making new friends. And she hides this by being a little brash and tactless.

Which scares people off. 

...Any suggestions?

 Let's say there is a person. Not me. And that person goes to the hospital, gets her regular check-ups (etc.), and then the docter asks the question.

"Are you taking your medice regularly?"

And, the patient, looks around the room, saying,

"...Yes. I did."

When in fact, the patient hasn't really been taking her medicine that often. That little lie is ok, right?
...
I mean, it should be. After all, the patient seems to be better than last time. And...
...
Fine. The patient is perhaps a little wrong. Just a little. (And she is going to go take the damn pills now.)
...
On a brighter note, WE (Toronto, that is. Brampton, even though it so darn close to Toronto has already beat the record but it doesn't count) ARE GETTING SO CLOSE TO THE RECORD BREAKER! WE NOW NEED...15 more cm of snow....
...That's a lot to shovel...and it probably won't fall yet....(It is March)....
... Should I really want it to snow, or not....
*sigh* 
BRING ON THE CLOUDS!