Hurt, Angry, and knowing it's the ADHD

Hi all.  I'm new here.  I just started the book and am reeling.  My therapist recommended the book and it's shockingly accurate.  

Something happened recently that has made me question everything about my relationship with my husband.  There have been big issues for the entirety of our relationship but this one seems to have pushed me over a cliff that I didn't realize I was holding onto the edge of with my fingertips.  I know, in my brain, that it is ADHD impulsivity but in my heart, I'm hurt, angry, and contemplating divorce.

My husband and I had been discussing going to Europe in the fall.  We would go together to Prague, separate for a few days so he could visit friends in Sweden while I visit a friend in Denmark, and then connect again to sight see.  We discussed it and then it appeared to be tabled because life got busy.  Then about 2 weeks ago, he came downstairs all excited because he had just booked a trip to Sweden with his best friend for 2.5 weeks.

I'm shocked, hurt, angry, and questioning whether he even loves me.  We don't travel often.  Up to this point, travel for me has been about family - whether it's us taking kids to Disney or flying to visit family elsewhere; but the kids are grown now and this was supposed to be our first trip that was just for us.

I don't even know what to do with this.  Do I plan my own trip by myself?  I didn't really speak to him for a few days because I was afraid of what might come out of my mouth if I did.  I waited about a week and then told him how hurt I am ... and then I did what I always do ... I stuffed it deep and ignored the situation.  As a woman that has only just started to address my personal traumas, this can't be healthy.  I feel like my marriage has been an ongoing series of him doing whatever he likes and me picking up the slack.  If this had only been an issue for a short period of time, I would feel hopeful ... but we've been married for 33 years.

What do I do?  How do I handle this?