It’s likely a bit of both. However, I have been in that situation many times. I’ve come to learn that if you have a group of friends and suddenly start getting excluded, they’re probably not as good of friends as you thought they were. In all instances, I have found this true. The friends who are worthy of you and who actually care about you will find the time for you. Those who see you as a friend of convenience won’t. If they’re not interested in you, don’t waste your time with them. I know it can feel like you’re suddenly friendless, but friends change in time for the vast majority of people. It’s a normal thing. It just means you’ve grown enough to move on, and they haven’t. It’s up to you to decide if they’re worth giving another chance or if things really look like they’ve taken an irreversible turn. But know that you deserve respect and love, just like everyone else.