Hi I find it interesting that not only does your girlfriend not do spontaneity but critises you for not being able to go out then shuts you down when you do ocassiomally suggest stuff??
However, that is not the point, the point is you said that those ideas sounded nice. They sound relaxing dont they and enjoyable. A little of what you need. Thats what I meam about finding things which suit you. It doesnt matter that you cant do whatever it is you drag yourself too and attempt to look happy and engaged. Ptsd or not different peolple like different stuff, you may have a medical reason behind your choices but no.one is entitled to know that. You just like star gazing and go.out of town for all they know? But its not a charade because if its actually doing you some good youll enjoy.yourself.
I know you dont want to be on your own but lets face it, you are a changed person and to certain extent the path you need to take wont change however much you wish or struggle otherwise.
Could your girlfriend not be brought round, if you explained a little?