I’m so embarrassed my boss blew my cover and accidentally exposed I have a crush to my crush LOL

I was on speaker with my boss having a work conversation in the parking lot and my crush walks by so I acknowledge him say hi blah blah and when I revert my attention back to the phone call my dumbass puts it back on speaker and he says, “Are you speaking to your CRUSH?” He said it so fucking loud and enunciated there’s no fucking way he didn’t hear that. I was behind the trunk of my car and my crush was right next to my car walking to his driver door. After that happened my body language immediately shriveled I was hiding behind my trunk covering my phone with my face just waiting for him to exit the garage LOL I tried to play it off and said “No” when my boss asked but idk if my crush noticed my body language and thought I was full of shit, if he even heard it, if he assumed it was him, etc. I know it’s hard to know if you weren’t there but do you guys think he heard and assumed it was him LOL. Idk how to act around him after this anymore. If he did, from a guy’s perspective if you found out a girl had a crush on you and you’re interested would you take the opportunity next time you see her and try to start something or think she’s weird. Because I’m overthinking and plain out embarrassed I feel like I can never show my face again and want to avoid him at all costs now LOL my friends said to own it and act like it never happened and that it’s better if he heard so we can skip 10 steps. What are your guys thoughts? Having a crush as a grown ass woman is so fucking embarrassing it makes me feel like a 16 year old lol