So we have a loose system to check dates and drummer asked about taking a gig via text. I said I was already out of town and committed on that date. Nothing further.....assumed we were not taking the gig. So a few days before the gig date I'm casually texting drummer and find out they have a sub for the gig and have been rehearsing with him a couple times. Am I being over sensitive thinking they should have at least told me about it? I feel like they should have. Regardless I'm over it and taking the high road but it seems like a lack of common courtesy.