ugh... help

So I’ve been in a relationship for a year, and I’ve never been better! But lately things have been off...

I haven’t orgasmed in at least 2-3 months. Every time it’s “my turn”, he suddenly gets tired.

I can’t get him hard in public anymore. Sometimes, when he’s okay with it, I’ll send him nudes while he’s out and about. He used to love it, but now he barely has a reaction.

What should I do? Am I doing something wrong?