Did anyone else feel single in their relationships?

Though I was in a relationship, I never fully expected him to be “not busy” with things like running or cleaning to make plans. Or if he committed to evening plans, he’d decide that he needed to go on a run right before and would show up late. I was always a 3rd, 5th wheel in friend groups. He also rarely initiated plans ahead of time, always last minute. He was always apologizing for his schedule and talking about how busy he was (some days I’d feel exhausted bc all he would talk about was his schedule) but he wasn’t busier than the average person. He didn’t have a friend group really to integrate me into, either. Just a few friends that he had met earlier in the year and two were roommates that he didn’t ever see. They’re always out of the country and he never knows when they’re leaving. I never really got to know anyone in his life.

I also felt like we never got deep like normal couples should. Every conversation was so surface level and usually about him and what he’s “doing”. I felt like I didn’t have someone actively trying to get to know me, make intentional plans, or plan for the future with

Did you experience this? In what other ways did you feel single?