My ex is the one that got me into Disney. We went a lot when we were together. We broke up 9 months go and I wasn't sure I could watch the podcasts anymore, let alone go to WDW. It was all about him to me. But I started watching the podcasts again after a little while and then starting planning a solo trip, determined to make it my own thing. So I went in July. There were moments of sadness and of course things that brought back a lot of memories. But overall, it was an amazing trip and I made enough of my own memories to move forward. Now Disney is so much more my thing and I am going alone again in December. And moving there next year.
I think it would definitely be easier to make new memories with someone new there, than to go solo. But I'm so glad I did it!