They both hurts me so bad i feel HEARTBROKEN,how do i move on? ADVICE PLEASE!?

to cut a very long story short..my friend and this guy had history..she was my bestfriend.

she got into a serious relationship that lasted for a year and 3 months ago it ended

me and the guy she previously liked got really close in that year..texted constantly etc.

the minute she was dumped,he stopped texting me,cut all contact

only problem is we are all in the same class at school..he ignored me for 3 months.we were so close i mean everyone said we had "the couple vibe"

anyways last month me and my "bestfriend" fell out,when we got back talking i read her messages behind her back to see if i could find out if there was a reason this guy became so cold only to see he was now texting her 24/7 but hadnt even got time to send me one message..i mean he didnt cut contact with his other friends so why cut contact with me? through the messages i found out he had a major crush on me and she couldnt stand it.. she said some really hurtful things about me "during the time we wernt speaking" but it still hurt.. the same night she sent him those me and him had a really fun night together,just hanging out.. anyways point is she seen him first but what hurts is she still went off and got a boyfriend,he still made it his thing to dig deeper and deeper with me,wanting to know everything about me.. becoming so close to one day cut all contact?!

she text me today to tell me they ARE together as a couple and it sounded like she was rubbing it in ..for someone who is a "bestfriend" she never calls or texts me we only speak in class.. anyways what hurts is.. i know i dont love him and i know i dont wanna be with him and i want to be happy for them..im angry he just "forgot me" and im angry that i know shes been turning him against me.. as i have caught her doing with alot of people.. i dont wanna cut her out of my life for my friends to think im the bad one

what im asking is MY QUESTION-what do i do when i go back to school? i have got it into my head,they are together i have to accept it and move on.. i dont know why its hurting me and why i feel the way i do.. i care about them both and i told them i want them to be happy but.. they hurt me so much and i wont ever give them the satisfaction of knowing that.. so without them knowing im hurt or angry or jealous..because i shouldnt be.. how do i move on? how do i let it not bother me? how do i face going to class everyday seeing them drool over eachother when i sit right beside them? when she will send me messages saying how good her relationship is.. knowing that he used to like me..how can she date someone who had feelings for her bestfriend?

i just dont know what im thinking or feeling i just know i feel hrut and betrayed and i have no right to stand in their way but im angry that they have ignored me and only wanna know me when they feel like rubbing it in.. i want them to think it doesnt bother me and i want it not to bother me.. i dont want them to be in my face 24/7 making me feel hurt..

advice? what would you do? im sorry if its confusing or long or put in a bad way i just need answers fast...

not just HOW DO I MOVE ON? but really Important.. WHAT DO I REPLY TO HER MESSAGE? she text me saying they are a couple i havnt text back i mean what do i say? i dont wanna sound hurt,i dont wanna sound jealous,or over happy.. something plain and simple but not too plain or she will think im jealous and rub it in more and more

and should i delete my myspace.i dont wanna go on everyday to see new pics of them together or for her to be writing every detail of what they are doing "shes one of those that writes her life story for the world to see" should i delete? it causes nothing but trouble anyways..

or put up stunning new pics to rub in their faces.. ahhh?! what do i do?

NOTE-not being bitchy but i know im prettier and have a nicer heart so i dont know how he got over me so quick to move onto her but he did..