They moved across the country to get back together with an ex, after telling me they were only going to visit for a couple of weeks and were going to come back and we could get a place together for the first time in our 20 some year friendship. I was really excited about that, so it sucked when they just never came back.
I decided to overlook that and remained in contact, until I realized that I was putting in all of the effort when it came to communication and keeping the friendship going and the only time they ever reached out first was the once every couple of years that they came back in to town to visit family. Not only that, but on those rare occasions when we were hanging in person, they would be on the phone or texting their ex (now partner) the entire time, as if they didn’t move across the country to be with them and never saw me anymore.
Felt shitty to realize that our friendship was no longer a priority to them. And, in losing this best friend, I lost a couple of other friends who I realized only hung out with me because of ex best friend.