he doesnt like me cos im fat

Truthfully - if anyone isn't interested in you, for WHATEVER reason: forget them. If they don't like you, then you're not worth their time and they certainly aren't worth anymore of your energy.

So how do you forget them? Simple: make a list of every positive thing about yourself. You're cool because .... etc.
If you can't make the list, talk to your friends and family and have them help you.
Do something you really love. Find a new hobby. Learn to play an instrument. If you're uncomfortable with how you look take up a sport.
Get involved in some kind of group. Go to a church youth group. Volunteer somewhere with other people. Join some kind of club.
Remind yourself how awesome you are everyday.
Take care of yourself. Give yourself the best of everything (within your means).
Don't be shy. Be outgoing. Tell jokes. Dance more. Be kind. Encourage others. Stand up for yourself.

Eventually, you'll find someone who is into you because they see exactly how amazing you are; in the meantime, you'll be having so much fun you'll forget about this guy.

Are you sure its your weight thats the problem? Because it seems like your self-esteem that needs a little bit more work...

Being overweight does not= ugly personality....

If you don't love yourself its not exactly fair for someone to fall for you unconditionally.

i feel like a failure im too fat to be loved with the ugliest personality trying to lose weight and e happy for the past 3 years getting no where i feel like dying now what can i do ?

Will losing weight honestly bring happiness to your life? Or will finding someone else that truly values and loves you for who you are going to bring you true happiness?

This^

Therapy

If someone doesn't like you - move on, there are bound to be plenty of other people who do.

And remember that losing weight isn't a guarantee of happiness. Getting to a healthy weight is a great thing to do - I wish I'd done it years ago, BUT seeing a different number on the scale doesn't change who you are or automatically make you happier. That is a whole different journey!

^ This is so true. Everyone (including myself) needs to work on the physical, mental, psychological and spiritual.

It sounds like you need to go and talk with your doctor about getting help for depression first of all. If you're serious about getting a handle on your life, you're going to need to start figuring out how to care for yourself and about yourself. That means.... you need professional help.
Once you can get that help, things will start to change for you.

We only accept the love we think we deserve...
I would not suggest being in a relationship with this state of mind. Sadly, it can be a real problem. I have been there!
You are beautiful. It may take some time and possibly therapy and/or self reflection to realize this.
The ability to love yourself at any state is a tough TOUGH thing to accomplish. Achieve your goals for yourslef, live your life, make changes for YOU.
Best of luck

I've seen posts from you before - how have you not been banned yet?

Exactly, which is why I posted what I did. I take it no one liked my advice on using it as motivation to reach her diet and fitness goals.

Personally I thought it was great. When is spiteful revenge sex NOT the answer?

Perfectly said!!!