Friendship ages

I am 19 and I have a male friend who is 24. I lied to my mom that he was 21 so she wouldn’t get all upset about it seeing as she already assumes he just wants to fuck me when he’s nothing like that at all. Me and my mom haven’t ever had a good situation with guys and stuff in general and her meeting then friend or not. I wish it was easy but our relationship and how weird it is makes it so hard and I just can’t do it. Is that bad