How do I convince my husband to start using the bidet?

UPDATE! He’s now using the bidet for pooping at home and then a cleansing wipe! We had sex after this and I’m waiting to see if I get a uti or not. Want to know why he made this change? We ran out of toilet paper lol. I think he realized it will save us money and he’s cheap AF!

I get if he chose to use the other bathroom I refuse to share a shower/bath due to his obsessive body hair (but it’s upstairs) but he chooses to use mine AND doesn’t seem to connect the fact his hygiene might play a role in me getting constant Utis? Also I still have to ask him to shut the door. I also have an immune deficiency so I’m prone to infections regardless.

I paid for and paid someone else to install a bidet in our main bathroom (the one he also uses) and he still chooses not to use it? If it’s convenient why would you pick TP over a bidet?

I need to really come in strong & communiate clearly with good summary of why this is important to me. I have not denied sex (but it’s not making me super attracted to him especially lately) because I don’t think I’ve been clear about how important this is. I want to make sure I’m clear and hopefully then he changes his habits I will see a decrease in UTI’s