"Oh, she's not going to talk to me anymore. She's busy, I should find new friend and just leave her. She's not going to stay anyway,".

Human is not a "thing". Human is not "something". Human is human. Human and things are totally two different things! Stop being such a materialistic if you want a good friend. Who would want to keep you anyway if even you are treating people like a toy? You might say,

"no I treat my friends very nice. I call her everyday. I give her a lot of things. I introduced her to my mum,".

What's the point of treating people nice when you expect to get something in return? Stop being materialistic. Think what are you going to serve on Earth, to people on Earth, not to demand for something! I'm sure everyone would agree if I say most of what we want is always not good for us. ;) One thing for sure, not everyone wants those things which come with a price. If you think what you want to make them happy by spending your money, think about it. Make people happy by your wish. Your willing. You want to make them happy for no reason by any ways.

If people treat you nice, concern about you, care for you for no reason, just cherish it. No need to ignore them unless they have any bad intention, just because you think they will bring you nothing. For example, in school life, if there's a kid who's from the laaaaaaaaaaaaast class  but they always ask about how your study is, share you useful info, you don't have to think they like you and tell them to stay out of you. Sometimes someone stranger from Facebook can be very concern about you. Just appreciate. It's human nature sometimes to like somebody with no reason.

However, don't trust people easily. Before you get attached to stranger who like you for no reason, find everything about them. Make sure they are really nice. Who are their family, parents. One thing for sure, if you want to know if they are a good person or not, find out how they treat their parents. See who comes first to them. Do they text you and call you even they're at home? If they do, that means they don't respect their parents right? Then think back.. Always be selective. We have the choice. Good people are for good people. If you denied somebody not so good (and you know it), God will definitely give you someone better in return. He just want to test you.

Never hurt people. Never lie. Never ignore people's feeling just because you don't have any interest on them. Remember, sometimes God sends His help through someone we don't even know. If they are good to you, always advice you to be good, willing to talk to you even if you scold them back, think back. Who knows this is how God wants to show you the right path? Again, don't feel like they like you. Good thing, even from a robber, we should accept. If a robber suddenly break into your house and say to you,

"What the hell were you thinking by not locking the doors!? Are you crazy?,"

Then accept it and do it. Lock the door. It's about good thing, not about from who. We can learn from everyone, everything, even cats!

Last but not least, God is always fair. It's Karma mannn. :)