Bf broke up w me bc he thinks i'm lying (help)
Im sorry if this is a long story im going to try to make it short.
me and my bf have been dating for a little over a year and a half now, we broke up back in june for about a month and have been in an open relationship, (trying to work on a serious relationship) for about the past month. while we were open we were both on tinder. long story short i got caught up in something and was talking to this guy i really liked and what not and my bf didnt like me talking to him and i kept telling him i wasnt but i was lying. i lied to him about going on his phone too and really started to give him no reason to trust me. anyways, this mornig AT 4 AM he facetimes me while im sleeping and i answer and he says, "can i ask you a question", and i say, "what" and he asks me if i have a whats app. i say no and he proceeds to tell me that when he facetimed me earlier in the day i had a whats app option to call on my contact but when he called me at 4 am it was gone. he is accusing me of downloading whats app to talk to guys behind his back or what not and he is breaking up with me bc he thinks im lying to him. i get he doesnt trust me but if i really downloaded a whats app i would just tell him to save our realtionship, but this time im really telling the truth.. im done with talking to that guy off of tinder. plus, what hes saying doesnt make sense. even if i deleted an app off my phone the option would still be there? also why not ask me why i have a whats app earlier in the day? why wait until fucking 4 am? ALSO, i proved to him i didnt have one. if you previously have downloaded an app but deleted, it would have the icloud download symbol, but for me when i went on the app store to show him ive never downloaded it, it said GET. that means i havent even installed it on my phone and i fucking showed him this but he still doesnt believe me. now hes breaking up with me bc i wont admit to anything. please if you guys have any advice please let me know. im sorry this was long but im so sad and scared. i dont want to loose him but i dont know what else to do to prove to him that i dont fucking have it.
btw im the 19 year old dating the 27 year old.