Am I being a bad friend?

Anonymous
My friend called me and asked me to attend Church with him at the last minute. In general, he tends to ask to hang out without any notice. I don't have a hectic life but I am in school and working full-time so sometimes the timing is off and I have to decline. Like today he called me an hour before wanting to go to Church which didn't leave much time for me to get ready. Plus I am trying to write a paper today that is due tomorrow.

Sometimes I feel he is not a good friend. I am going to be having surgery next month and need someone to pick me up from the hospital. I asked him and was told if he's in town he'll do it. It was a bit disappointing because he knows I don't have many people to count on. Whenever there is something going on with him I am there even financially. Sometimes I noticed when I text or call him he may not answer or reply or take a long time to respond. Though recently he reached out to me asking where I had been. I had stopped texting/calling him because I got tired of no response.

What are your thoughts? Am I overreacting or am I a bad friend or is he?
Am I being a bad friend?
2 Opinion