AIO 27(m)/rant

My SO and I have been in an LDR for 10 years. I have had a lot of family issues and set backs that hindered my ability to go and meet them. We used to chat a lot and do voice calls/webcam through skype but that died out around the third year in. They would still send selfies and stuff and we'd snap eachother pretty frequently. We would send nudes once in a while and sext pretty frequently but the nudes stopped coming in around 6ish years in. We hang out once in a while and watch a movie in discord but they don't ever unmute and only type and every time I want to cam it's a hard no. They recently started sending me voice messages so that made me pretty happy. They recently got a job about 4 or 5 months back and have been spending a lot of time working, and I get it they're busy. This kinda boiled over because I would make plans with them and they would be down only to tell me they took on an extra shift the day we had plans out of the blue. I'd say hey no problem, when's your next day off just to have them do it again. I kinda hit my boiling point and talked with them, telling them it hurt my feelings that they'd blow me off like that. I also have felt like we are growing kinda distant which bothers me a lot. I kinda bluntly asked if there was someone else that they were interested in which they vehemently denied. The lack of time together, any sexting/nudes and spotty availability just has me bummed and worried that either they are losing interest or that I'm just the fall back option. Am I over reacting? Is the relationship failing? Idk. Advice would be appreciated.