I asked bf for sex and...

We used to have sex all the time . it has definitely dwindled since we moved in together.. Anyway.

I looked at his phone and found copious amounts of porn . note that we only have sex maybe 4 times a month , if that .

I think he watches porn in the shower . so today , he goes to take a shower , and I text him " can I have some ?" And replies back with " tonight baby" . like I just want some spontaneity. I'm ready and willing 24 7. I just think he prefers porn to me. What do you guys think ? Honestly . I'm in good shape, pretty , we get along just fine. Been together for years.

Also..how can I sit him down and talk to him to tell him how i feel...if he doesnt know that I've looked through his phone ? Invasion of privacy would be a deal breaker for him but I just HAD to know .