Hi Adam,

I’ve read all the posts and it really does seem that you have shown yourself to be a loving, supportive partner towards your girlfriend.  The problem is that no matter how much you say or do, it disappears into an empty well.  PTSD is easy to treat when you (your girlfriend) finds a qualified professional.  I am speaking from that perspective.

For want of a better phrase, you have now been shown the red card.  You have found out where you stand with her from this dating app.  She’s looking for someone else.  I suggest that you mentally let her go with love and move on to someone new who can return your feelings.  Cut all contact and move on.