Did i miss something? Did you two decide that you were no longer separated? What's with planning a trip together this summer? What's with talking with her while you are on your drive? Why are you accommodating her? You are right. There are holes in your detachment... GAPING! It's a shame you are not using this time and space apart to your advantage... She still has control over you... And your last paragraph says just how much she owns you... There is nothing in that paragraph that played out to your benefit... She won... Saying that it doesn't mean you don't want contact at all played into her hands. And that's why she walked away from the convo first...
When she returns, she will be the same as she was before she left... And you will still be attached...
If you do this right, meaning NC and working on detachment while she is away, you could show yourself a brand new man by the time she returns... But that CANNOT, WILL NOT happen if you keep in contact with her...
