I don’t turn on my bf

Recently I’ve been feeling that I don’t turn on my bf. For example one night I put on some lingerie for him with some heels because he said he’s always wanted to do it with me in heels, so I come out of the bathroom and he looked surprised but we started making out and he wasnt hard or anything, and then he’s like I’m sorry I don’t feel anything...and then another example is yesterday I went to his house and we started making out and he was hard but once I took my clothes off he got soft...and he wouldn’t get hard again. And then later he told me it’s his fault and that he doesn’t know what’s going on that it’s not me. But I said no it’s me, obviously I don’t turn you on and I’m pretty sure when you watch porn you don’t go soft and he didn’t say anything about that because it’s true. And I’m already really insecure about my body and this just really sucks.