[Discussion] A while ago I came out to my mom and it's been horrible

Few months ago I graduated uni and I moved back with my parents for a year because I'm leaving in August for my Master's abroad. This was not good, I didn't have my space or anything, my parents are kinda old people and this was a recipe for a disaster. A while ago I came out to my mom because she kept pressuring me because she'd always thought I'm gay. I'm not camp, but few years ago she got a hate mail and she started suspecting.I guess her reaction was expected; she's always been close-minded and so at first she tried to deny it. She kept asking me if I'm the top or the bottom, kept asking me about everything. Ever since our relationship has been horrible. At many occasions she's said hurtful and wrong things, she's told me I shouldn't have told her (even though she was the one pressuring me to come out) because she will never accept it and she's acting like it's the end of the world. Every day, she comes back from work, drinks a glass of wine and smokes. She never smiles; she's always moody and pissy. At occasions she's tried to tell me it's not me, when it's obviously me. The way she looks at me, I can see it. Other times, she tells me it is me and that "should I be fucking happy about this? What would other moms do?". She's also said very insulting things about my boyfriend, when he's the only person that's kept me sane this year. Icing on the cake was today, when my sister, being the smartass she is, told my mom "accept that your son is a fag" and when my mom saw that hurt me, she was like "why are you offended? Everyone else is gonna call you this either way". I get this is new but why?These things have affected my relationship with her to such a great extent; I can't make up with her, I can't be comfortable around her; even when we "make up" I know it's only going to be for a while and soon we will be fighting and the talking will switch to the gay thing. My dad doesn't know but my mom says he's not a fool and he suspects. I am so affected and distressed; I don't like my parents anymore. I cannot wait to leave for my Master's. I'm only staying with them because they are the ones that are financially supporting me on this, because it's kinda expensive. I am not comfortable around my parents. I have a feeling that when I leave we're going to become estranged. My mom thinks it's a phase, I'm fucking 23 and I've been in so many relationships, it's not a fucking phase. When I told her I wanna have a life with man and maybe a child in a country that will accept this (I'm moving to Sweden so that is entirely a possibility) she almost lost. I can't have that. I can't have people in my life that make me feel inferior just because I'm gay. All this work I did all these years, all this accepting myself is gone. Sometimes I look at myself in a mirror and I'm like "wow yeah she's right. You really are a fag".