Boyfriend cheated and I dont know how to feel or what to do /u/randomyellow1 Sex

So I [22f] learned today through a mutual friend they my boyfriend [22m] of 3 years was cheating on me. When I asked him if he was cheating on me he said no but because hes a shitty liar and I knew immediately that he was lying. After about an hour of grilling him about it he confessed and said it just kind of happened. I have no clue who the girl was but I guess he met her at the gym. But the worst part of the story was that he brought her back to my place (Which I own and paid rent on) and they had sex on our bed which I paid for. The bed is well over a 1000 dollars and I bought it because I have neck problems from a botched fall I had a few years ago while I was doing cheer. I know it sounds kinda petty I’m going on about a mattress but to me but it was a safe space for me and now it feel violated. Between the emotions of having my heart broken and feel dirty in my own apartment I dont know what to do or what to feel? Also should note I did kick my boyfriend out.

So I [22f] learned today through a mutual friend they my boyfriend [22m] of 3 years was cheating on me. When I asked him if he was cheating on me he said no but because hes a shitty liar and I knew immediately that he was lying. After about an hour of grilling him about it he confessed and said it just kind of happened. I have no clue who the girl was but I guess he met her at the gym. But the worst part of the story was that he brought her back to my place (Which I own and paid rent on) and they had sex on our bed which I paid for. The bed is well over a 1000 dollars and I bought it because I have neck problems from a botched fall I had a few years ago while I was doing cheer. I know it sounds kinda petty I’m going on about a mattress but to me but it was a safe space for me and now it feel violated. Between the emotions of having my heart broken and feel dirty in my own apartment I dont know what to do or what to feel? Also should note I did kick my boyfriend out.