Guys ive recently had a very bad situation..

Im 24, own a business, lift and dance regularly.

There is a girl, 24 yo 6.5/10.

She was my plate, we became girlfriend boyfriend 2 weeks ago.

I look her as LTR.

Friday she arranged her friends house so we could stay alone.

We enjoyed our time and had sex for 2 days.

Today everything was great, we were looking to something in her phone and she received a text "i dream in you, i miss you" I was shocked and asked what was it, she tried to hide it then I said I need to see her messages or I leave the house now and breaking up. She said she does not want to show her messages and did not let me leave the house by turning into a beast. I used force but she blocked the door and cried like a bitch for 2 hours. Then I said I promise I wont break up if I see the messages (she believed) and showed me messages. As she says he was someone who met her in a video game and helped in bad times. But when I checked the messages, the way they were talking was disgusting, she was calling her "love, sleep with me on phone" sending hearts, he was sending some photos as well, I threw the phone on the wall and tried to leave the home, she again cried a lot and said he is an imaginary person and we should not finish our relationship for that bla bla.

Should I hard next? I have feelings for her..