ok i am sorry for this but i need to rant & i can't do it in real life because i need to maintain some level of exterior calmness and sanity but~
well me and my boyfriend of 3 years broke up a few days ago, i posted that we were having problems a couple weeks ago on this same board but as of last week we actually broke up and i have been completely inactive as it's been pretty tough going for me, this is seriously not what i thought would happen, i know it's super naive but i thought we could have a future together but i guess not.
basically in the last few month(s) of our relationship he had began seeing this girl, just as a friend, however i feel their friendship crossed a line of appropriateness, i wasn't really comfortable with it, he would spend the night at hers without telling me, actively ignoring my calls and messages, when this first happened i told him that i didn't mind as long as he told me where he was but he again chose to do this numerous times, word got back to me that he had also been criticizing our relationship to her and he confirmed this.
despite this and i know this sounds weird and dumb but i know that he loved me, i tried to end the relationship several times and he was genuinely distraught over it and successfully changed my mind, he'd talk about our future together and made me feel comfortable again in the relationship, we had trips planned for summer and were thinking about moving in together when i started back at uni, he doesn't have a lot of close friends so i assumed this girl was just something new to him and there wasn't any romantic/sexual feelings.
then we fast forward to a few days ago, he had been uncontactable for 5 days (VERY unusual, we're usually in eachothers pockets), i left so many voicemails, texts, facebook messages and even though his phone would ring out no one would answer, he was also never at home, i eventually managed to get a hold of him by randomly turning up at his mum's house, i state the relationship is over (i had done this so a few times by this point) and he agrees but it is very weird, he basically acts very cold and tells me that there is no feelings anymore and he just needs to be single at this time and there's nothing that can salvage the relationship and i haven't seen him since that. (despite that it wasn't like a screaming match or anything, i can only describe it as just.. cold)
this is the weirdest part though, his (female) friend was in a committed relationship (they had been going out for 2 years but had dated previously), they seemed well suited together and really seemed like a working relationship, i saw them a couple days previously and they were very affectionate, also her boyfriend was my boyfriends really good friend and they planned to go on holiday together in about a week but i found out yesterday they broke up a day after our relationship ended.
i understand that is totally wrong to accuse someone of cheating (and i would never accuse him) when there is no proof but it is driving me crazy not knowing, and obviously there is no real way to find out. 
also this is again probably really rude and inappropriate of me to say but she has cheated on every boyfriend she has had, her last relationship she cheated on her boyfriend with his best friend, and her current (well ex now) had a girlfriend at the time they got together and she didn't appear to care at all, in fact it lasted a couple weeks before he ended it)
i'm sorry i just needed to rant ;_; please god forbid no one needs to reply to this pathetic rambling, i just don't know if i am going crazy or not..
edit: wow sorry i wrote like a book there, my bad