Situationship

I was with my ex for 14 years. Despite having complicated on and off periods, I still consider him as my best friend. I chose to move to another state in the mindset of finding new opportunities because everything about trying to 'survive' within societal terms absolutely sucks - but I was moreso running away from trauma, negativity and fear (now that I had time to reflect on my decision). My ex's love language is physical touch, thus he was like "if you move, that's a dealbreaker because I need someone to fill that need." Being the rational person I am, I solemnly agreed that we should break up because I can't and won't be able to provide what he needs. Looking back, I still wasn't able to even when we was just an hour away from each other because trauma holding me back from prioritising our relationship, showing up for him physically/ intimately, etc. But, even then, he still understood and put effort into trying to make it work while I. just took everything for granted and didn't realize I was codependent with him until it was too late. Of course, I blame my upbringing and emotional neglect from family/ friends; but that's a childish excuse, I feel like. Anyway, even though we should have just departed as friends, we decided to go the 'situationship' route. And, I should have known that was going to trouble - at least on my end. I still had romantic feelings for him but I should have saw the signs that he had moved on without me. Change in behaviour, lack of communication... falling in love with someone else. The one thing we promised each other was that, since we were going to be in a situationship, we would at least tell each other ASAP when feelings were developing for someone else. So that there wouldn't be any confusion or conflict; like me, wanting to see him over the holidays and have sex. But, he told me that he has a girlfriend last minute. It just feels like he didn't have any regard about my feelings so l feel hurt and disrespected. Is this on me? Yeah, most likely. However, his excuse was that he wanted to wait until NEXT TIME we say each other in person to say anything. If I didn't plan on visiting back to my home state, WHEN would the next time would've been? Would he have just left me in the dark? I don't necessarily care that he has moved on. I'm just hurt how all of this was handled. You would think more than a decade together would warrant some type of respect tbh.