Hey there,
I guess you must ignore and forget him completely.His actions say that he only wants s** and doesnt have feelings for anyone.You should be glad that you came to know about it soon.You made a very fine decision not to sleep with him.And I am pretty sure you will find a much better guy in future.You are just 14 and you have complete life infront of you.
I know it would be hard but remember that Time heals wounds.Real men are those who respect the feelings of girl, not those who run after s**.
I wish you best of luck and I hope you overcome it.If you need anyone to talk with,
PM me.
Please stay strong.
Take Care