This post is probably very specific and therefore not very relatable, but hopefully some people will have ideas anyway

I'm an FtM in college and came out to my teacher a month and a half ago, who was very supportive. None of the other adults I know have been supportive at all so this really meant a lot. The teacher is my English teacher, and since then I've (sort of by accident) made both creative assignments I've been set subtley trans-related. I'm for some reason getting very worried that my teacher is going to get tired of me going on about my gender, and start finding me irritating. This is making me hesitate to go talk to him again for advice and support, even though I'd like to. I'm also worried that, if I do seek his support again, I will accidentally say things which aren't appropriate to discuss with a teacher, and he will get uncomfortable. So basically, I'm too worried by the idea of this teacher going off me to seek his support again, even though I've no real reason to think this might happen. I guess I'm just used to negative reactions from adults, so expecting another one. The teacher did say I can come and talk to him again if I need to.
So, does anyone have ideas as to whether I'm just naturally worrying, or if there's a genuine risk that I will bore or annoy this teacher? Also, do you think that dysphoria is an appropriate topic to discuss with a teacher? Thank you