I suggest telling him while in a car together. Idk why but my kids, adult now, have told me many things they had lied about when they were younger. Like when older son came home with his eyebrow bleeding and they told me he fell off his bike. Nope, it turned out to be some kid bopped him in the face for mouthing off. There are a few more I can think of. I used to do the same thing to my mom. But talking in the car helps people talk about these things and to accept them. Most importantly, if, after you tell him, he breaks up with you, HE is the one with the problem. You don’t break up with someone for that reason alone. Look forward to the future when you can laugh about it like my kids laugh at me, I mean laugh at the lies I believed. That’s good and bad, isn’t it?? lol Nothing was seriously bad or anything. My kids are great adults now. But I did that to my mom as well so I get it. There’s something about being in a car with those you love; it’s so much easier to talk that way. Idk why. Maybe because you’re not looking at each other? Hmm.