Me and my girlfriend met in 8th grade and have dated since. We have been together almost 7 years and engaged for 1 year. We got into a fight about her wanting to hang out with a guy that she kissed before and I didn't want her to go. Well I gave in and she went and I couldn't help but text her and tell her I didn't like she was there and she got mad and said I didn't trust her. She said we need time apart so she could think about if she wanted to marry me. She ended up kissing the guy that night. I have done everything in my power to see her and express my love for her. She said we could hang out and just to give her time but she has been with him for 3 days. I don't know what to do anymore. I gave her everything I could. I spoiled her with clothes and purses. She didn't pay any bills. I only made her go to college but she only goes for 4 hours a day and I'm at work for 5 hours after she gets out. I can't eat or sleep. Every time I close my eyes I see her with someone else. I've cried so much in the past few days it hurts and I just want to die. I tell her I love and miss her every time I talk to her or text her and she just says OK. She says she still loves me and is still in love with me. I just don't understand. I need help before I lose my mind.