This is tough. It's okay to be sad. Just know that there are people who care about you, IRL and here, and will support you no matter what your decision is.
Your D loves you and doesn't like to see you hurting... I'm sure that is where she is coming from. Also, I think it is probably healthy to take stock every once in awhile, really evaluate your situation, and decide if you are okay with status quo or if some sort of change is better. Taking steps in any direction also doesn't necessarily mean you are no longer standing for your M-- you may just be doing it in another way. We hear over and over here that D isn't necessarily the end of an R, either. You have many roads open to you.
But I do think it is important to take a hard look every once in awhile, and be open to change. Maybe plan that trip for the spring or next summer. Try out something else new. Do something just for you and give yourself a break from thinking about him at all. And it is okay to be sad or frustrated or angry... those feelings are healthy and natural.
Hope your day tomorrow is better, PLC. Hugs.
Me (46) H (42) M:14 T:18, D9 & D11 4/19 - 12/19: series of escalating BDs 9/20 - present: R and piecing