Never thought I'd be that girl

So this is really long so if you stay and listen thanks in advance😘 so me and my boyfriend have been together 5yrs and it hasn't been easy and i just need to vent

So like i said we have been together 5yrs and it hasn't been the best relationship well reasonly its been bad so on the 29th of dec (his brithday by da way) i fell asleep and when i woke up his was gone fyi it was 5:40am so where could he be ? anyways i called his phone and texted him no answer so finally at 7am i go to sleep so at 9am i get a text from him saying that he's sorry he didnt answer and that we needed to talk so okay ...he's gets home at 12pm and we start talking so he tells me that he cheated on me last night with some random women but she just gave him head and he didnt finish so i ask why ...why would u do this and his answer was i wanted u to hate me so i could have a reason to leave so im just speechless at this time time like really wow and his like and its not the first time so im like ok ..so he goes on to say he cheated twice with and a girl when we first got together while he supposed to be at school smfh. and his wife (they have been separated for 6yrs )that he cheated with her too when he came home from Dc back in 2013 ( she told me this the next day but he denied it )and like a dummy i believe him smfh even tho i knew it was true deep down😒😒😕anyways he goes on and tells me everything thats his lied about in the past 5yrs and im just sitting there and thiking wow this whole relationship has been a lie SMFH so he goes on to tell me his been unhappy for a long time and that he cant do it anymore and im just shocked like i knew we had our fights and hard times in the past but wow i didnt think it was this bad smh so he was like do u have something to say and im just like if u want to u can stay here until u find a place to stay i didnt know what else to say i so lost this was over a week and he is still here and acting like nothing happen calling me baby telling he loves me and im so lost ive never been this weak minded person wanting to have sex and i give it to him like a dummy idk what to do i feel so stupid ...