Advice on how to make me happy again?

I don't know why, but since going back to school this year, I feel like an outcast. I speak to more people than usual and I know I have some great friends, but deep down I feel empty.

I'm in Year 10 / 9th Grade, and at the moment I have 4 really close friends, all girls. They aren't in all of my classes, but at least one of them is in my class at a time. My first problem is that they all speak to boys! 3 of them have boyfriends and the other one speaks to a boy who likes her. I feel a bit left out with that I suppose? Boys have said they find me attractive and stuff but because I'm shy, it never goes any further than that… What can I do to buck up my confidence or talk to more people?

Next, yesterday I was invited to a chat with my 2 of my 4 friends, another girl (her names Ellie) and 3 other boys. We were all talking and laughing and that and I felt quite happy! Then Ellie was trying to sing and everyone was bored and my phone rang but I couldn't find it, so the iPhone marimba tune was going off for abit. I answered the call, looked up at my laptop and noticed that Ellie had kicked me out of the chat. I asked why and she said "Nobody likes you anyway, we didn't want you in it in the first place". She then kicked my other friend out, and left just 1 of them in the chat with her. I feel like I'm drifting away from everyone. Any advice on what to do here?

You can't rely on others to make you happy.

You first need to find happiness within yourself, and the rest will fall into place.

My suggestion? Screw them. Who cares what they think or what they say. You don't have a boyfriend? So what? You're a teenager. You don't need a boyfriend. Having one doesn't make you cooler/more special.
"nobody likes you anyway, we didn't want you in it in the first place" *** her. She's rude, mean and inconsiderate, why do you care what she has to say? She's obviously insecure if she feels the need to put you down.

Dress the way makes YOU happy.
Talk to whoever YOU want.
Do well in your classes, because that's YOUR future you're investing in.
Be a loyal friend to the friends you already have, because they obviously care about YOU
Join/participate in extra curricular activities that YOU enjoy vrs who else is in them/social status because YOU are an individual.
Be self confident, be happy with who you are. Good hearted people will be drawn to you.

People only concerned with popularity and looks? They'll probably stay away, they might even try to put you down; people with no real personality/morals will always feel threatened by someone who has them.

Don't worry, I sometimes feel exactly the same but then I remember that my other friends still care about me and so do my family, so just stick with them and you'll be fine! I don't have a boyfriend either and I'm 15! Also we have the same name and you basically described my situation a couple of months back!