My business partner wants to discuss boundaries (I will not promote)

Welp. Got my whole world shook today. We just crossed to first revenue, we are still both working full time jobs, they are coming off a massive work function but when I talked to them last week they told me to let them know what they’d dropped. I contacted them yesterday about something we’d been going back and forth on to no response and then today I sent a little nothing text that resulted in a really upsetting text about how I was ignoring boundaries and I was moving too fast and we needed to discuss if I could handle boundaries or if I needed to find a new partner. We will sit down and talk and honestly, we will probably still walk out as partners, but I really thought I HAD been respectful and it’s a kick in the teeth to know I hurt them.