I don't know how to take this?

Soo my bfs not really a sexual person and we don’t usually flirt w/ each other so yesterday I tried to flirt w/ him bc he sent me a picture while he was @ work and the picture was just something written on a wall next to a pipe (he works in HVAC) so there was writing on the wall next to the pipe and the writing said “sexy pipe” and i responded “lmao sexy pipe” and he replied “lmfaooo” and I responded w/
“I miss your pipe” and his response was “omggg stopp”

I didn’t open the message until this morning bc I passed tf out yesterday/into today , although I did see he messaged me again that same night asking what I was doing on sea of thieves (we started playing that together)

So all seems fine I just found his response to my flirting to be kind of rejecting so yaaaa I don't know am I reading too much jnto it? (I probably am but I feel like I need other opinions) maybe it’s fine cuz he’s not really flirty but I don't know kinda sucks to feel like i can’t flirt w/ him and we’ve been together since 2021
I don't know how to take this?
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