She's not Interested in having Relationship at the Moment

Whenever someone tells you he or she is not interested in having relationship at the moment, you have to understand that this actually means you are not in his or her league.
Give up.
As lousy as it sounds like a common lie to brush you off, the person is, in fact, trying to sound nice to you while rejecting you. Of course, this excuse is usually used by girls. To give them the benefits of doubt, you can assume that their brains have lied to them instead.
No man is an island and few people will choose to be stay single.
In reality, once a girl has found her eye candy, she will never remember what she has told you – not interested in any relationship. It does not matter when is the last breakup date since duration to heal does not matter at all. In fact, getting into a new relationship is one of the best way to heal.
Most of the time, no matter how decent and sincere you are, and how hard you try, a girl who does not take a fancy in you in the first place will never fall for you months later. Cases of success attempts are rare and you probably should not pin any hope while wasting your time and tears. On the other hand, retaining your dignity may increase the chance for you.
You can be a gem in another person’s eyes. Let the person who truly deserves your love be the fortunate one.

Things Can be so Much Better

It could always be worse!
Another common response to complaining is to delegitimise misery by portraying it as a competition. “You’re privileged, you have an education,” they tell the white-collar unemployed. “You’re privileged, you live in America,” they tell the poor. “You’re privileged, you got out,” they tell the exile. “You’re privileged, you have food and shelter,” they tell the subject of the dictator.
It could always be worse, they say. They don’t like to say that it could always be better, because that would require redress.
You can always compare yourself with the better or worse – generally, none is wrong. When things are bad, comparing with the better will push you to strife on while comparing with the worse will make you appreciate more. Just make sure you don’t practice self-pity.
However, those who are on the “high ground” are more likely (not all of course) to tell those under them to compare with the worse. Hence, you can commonly hear people compare Singapore to less developed countries like Indonesia. Subconsciously, these people are likely afraid of “improvements” because improvements will create changes and improvements for someone may be the opposite for another person.
There’s a difference between thinking positively and believing blindly on every piece of “good” news.
People need to start acknowledging that by complaining, flaws can be shown. Of course, it takes some intelligence and experience to “complain” about the right thing. Nevertheless, complaining is crucial to improvement.
“Complaining” is, often, used as a term to degrade the speaker.
If people keep thinking “if you don’t have a solution, don’t say anything”, life will never progress. Then there won’t even be something called “democracy”, while everyone is likely to be slogging hard for some emperors/dictators now. Supporters of every government use this excuse whenever the government screws things up.
Most human beings also prefer hearing good things. Count yourself lucky that many people have sacrificed themselves physically and mentally to voice out things that have gone wrong.
No one is perfect in this world. Everyone should stop living in denial and, instead, keep improving.