My bf is always trying to tell me when to shower?? (Yes, I shower everyday)

First of all, I shower everyday, and I rarely sweat at all, so it’s not like this is because I stink or something. We’ve been together for 2 years, and have lived together for 1 year. He’s always going and starting the shower for me when I don’t want to shower yet. Like the second I wake up he’ll start it for me, and knows I hate morning showers? And when I go out to the store or something (on days off work) early in the day, he’ll start the shower for me when I’m on my way home, and I just want to relax for a bit before I shower..I don’t understand. He likes to shower first thing in the morning but like am I not allowed to decide when I want to shower?? I prefer to shower in the evening, except when I work I shower directly after (~4:30pm). It’s getting really irritating and he does it even after I’ve complained. What do I do?