Should I tell my boyfriend my secret I’ve been keeping?

Sounds spicy but it’s not bad. Probably going to laugh when y’all read this.
I adore my boyfriend. Honestly he’s turned into my best friend and I’m so proud of him and how hard he works. I’m a mom who got a divorce and lost everything and I’d do it again to keep my son and two dogs. I went from a stay at home mom to working until 11pm at night. And I really spend every penny for my son. My boyfriend makes good money and loves to spoil me. I have to be careful when we go places because if I say I like something HE WILL buy it. He even loves buying things for my son. And there’s a big guilt there because I can’t spend money on him like that and had to put money back just to buy him one gift he is so proud of.
Well with the job he does he’s gone a lot. Which sucks but makes every second with him sweeter. I’m a dreamer and he makes it happen and we’ve kinda learn to do each other’s hobbies so we can do them together. He’s supported me through everything and he will never understand how much I appreciate him.
So like I said I have two dogs. One that works and another that is retired. We live in the middle of nowhere so no leashes and they run free and they get a workout in. Which makes them really chill dogs. They have issues like one likes to find the trash and the other eats poop but besides that those are my babies. I also used to be a dog trainer nothing to fancy but I got lucky enough to work with big breeds a lot which made me really study dog behavior.
He has the cutest dog that has some issues that would probably annoy someone that didn’t know the behavior but I just correct it in the proper way. My dogs also correct him when he’s being a little extra. Nothing crazy just a gentle dog correction.
Well.. he’s a chewer and there’s something about night time that makes him want to chew BAD! While I’m gone they all go in kennels but when I’m home I let them run around the house, I sit outside and watch them play to really get the energy out. Well my boyfriend is out of town working his butt off so I got his dog and I LOVE THIS DOG! I never want him to think he’s a problem because he’s got some behavioral issues but genuinely the sweetest dog. But we had a problem…
When I take a shower all 3 dogs pile in the bathroom and lay on the floor. My AirPod died and I accidentally left it on the couch not thinking. Well Mr. Chew found it and chewed it to pieces while I was in the shower. Honestly my fault for leaving it out. But I’m missing the other one.. why? Remember when I said I had a son?? Yeah he hid the other. So now I have no AirPods…
I don’t want to tell him because I know he’ll do two things I don’t want him to do.

1. Buy me another pair
2. Think his dog is too much.

When honestly it was my fault and I don’t want him spending that kind of money on me over something that was my fault. And I freakin adore this dog to death.
I’m not good at keeping secrets from him and I know he’ll notice them not in my ears when we FaceTime.. HELPME WHAT DO I DO

Probably thought this was a cheating or something juicy but really a dog ate my AirPod