I am not certain what your exact question is so I can only provide you with a general response. I am very sorry that you are struggling. Unfortunately, when one person in a relationship decides that it is over, then it is. You wrote that your girlfriend suddenly decided that she no longer loves you or is in love with you. This surprised you. It may seem as though her feelings came out of “nowhere” but that is unlikely. It seemed that way but there were likely signs of her growing disinterest in the relationship that you missed.
You were there for her during the period in which she ended her marriage. I am sure that you were a great help to her during this stormy time in her life. You are probably aware of the old saying “any port in a storm.” This saying references the fact that when you are in very trying circumstances, you cannot be and will not be too choosy about your port of comfort. This is why rebound relationships are described with great caution.
During this stormy period of her life, you were her comforting port. Now that the storm has ended, she can continue her journey and look for the port of her choice. Let’s not believe that she was aware of her intentions when she pulled into your port. She very likely was only concerned with the immediacy of her situation. You served as a good friend, boyfriend, during this period of her life. She probably thanks you and is thankful in her mind for your being there when she most needed you.
Rebound relationships are very tricky and usually do not have good outcomes. When she pulled into that port during this stormy period in her life, she was most concerned with immediate relief. She did not have the luxury of long-term planning.
From her actions it is very clear that she is very definite about you and the relationship you had.
Unfortunately, you would like the relationship to continue. In most breakups, only one of the parties wishes for the relationship to end. Yes, sometimes both parties agree to a breakup but that is not usually the case. The person who wants it to end is happy and the person who does not want it to end, feels as you do now.
The breakup of a relationship is often undesired and torturous. However, every ending allows for a new beginning. You still have the opportunity to find the woman who will bring you great happiness and, unlike this past girlfriend, will value you, respect you and love you. That is the kind of woman you want in your life. Put very simply, someone that you want as much as she wants you.
You mentioned that she is involved with another guy. That may be the reason why she has ended her relationship with you. She did not tell you that information directly but, given the evidence, it is a reasonable conclusion.
I know that you are in pain right now. This is very understandable. It would have been better if she had been more honest with you about why she is ending the relationship. She could have provided you with a more honest explanation but unfortunately she hasn’t. Psychologically, at this time, it would be in your best interest to try to move on with your life. I know that is easier said than done but you can’t force someone to stay in a relationship. In addition, it would be helpful if you surrounded yourself with supportive friends and family.
You are not alone in your struggles. Breakups are to be expected. Unfortunately, most people have experienced or will experience a breakup at some point in their lives. It is the norm rather than the exception.
If you would like to write back and ask a more specific question, or additional questions, I would be happy to assist you. I wish you the best of luck. Please take care.