I’m nervous about wearing lingerie in front of my boyfriend

Well I️ got a harness and I️ wore it for him, he didn’t really care, his reaction didn’t change....

I’m pretty open with him about my body (sleep naked, walk around the house topples) so I️ get it if he thinks it’s nothing new. I️ just really want to have more sex like we used to but I️ feel like he’s just not turned on by me anymore. I️ want to buy more lingerie I’m just so scared he’s not gonna like it. My self esteem is low enough as it is, when it comes to being/feeling sexy.