I am a 26 year old male. I have been seeing my (now ex) girlfriend for close to 5 years... she is my same age. We met in college and have been together since. When we met, we liked to party a lot together. I have continued to party (meaning mainly drinking with friends at bars) after getting a job, but she has slowed down with that kind of stuff a lot.
She moved in with me at the very end of August (very recently). Everything seemed to be going fine, although she was nervous about the move in. I tell her that everything will be fine, but there will be an adjustment period, and everyone gets cold feet about large changes like this. Then 2 weeks ago, I had to go out of town for business, leaving on a Saturday. She calls me when I am away and tells me that she wants a break, and that we shouldn't talk for a week... she needs some time to think about things (probably triggered by the move in). She knows that I come back on that Wednesday, so she stays with a friend for the rest of the week (after that Wednesday). This past Saturday night, she texts me "I miss you" at like 2am, so I think things are going to be fine, but I don't text back since I am still sort of hurt by her instilling this break. The next morning she texts "I shouldn't have sent that, I'm sorry", but I think that she just said this since we are on a break. The next time we talk is this past Monday. She comes back over to my place and ends it. She says that she feels like we are different people now and have drifted apart. Mentions in passing that I like to party a lot and has tried to put effort into partying more, but she is just not that person anymore. She is also going through a very rough time at work, and is currently not speaking with her best friend because of a stupid fight they had a few weeks ago. She says that she just wants to be alone to figure her life out... and that she doesn't want to focus on others right now... she wants to focus on herself and that she thinks it is too late to fix things between us. This was the last time I talked to her.
I did not see this coming at all. I did not know the severity of her feelings in this. Had I known, I would have tried to fix things much sooner. After 4.5 years, we became very "comfortable" with each other, and there was less romance/excitement involved (which is my fault) and I thought she would always be there. If she sat me down and told me how unhappy she is, I would have definitely taken drastic measures to try to fix things... I don't think I was given a fair chance. I don't have to party as much, and this has been a wake up call to me that I've been neglecting the relationship. I now know that I should have always been putting in a lot more effort to make her happy... I just didn't get the luxury of knowing this before she broke it off.
I feel like calling/texting every second, but I know that I need to give her space. I have to get her back though... she was the most important thing in my life and I want to marry her. I just need to know what the best course of action is to convince her to give me a 2nd chance. Should I tell her how much I have realized this past week? I am willing to do anything to fix this.
Any advice would be appreciated. Thanks!