Would a guy introduce me to his parents 3 weeks into our relationship even though he's just using me for sex?

Anonymous
I'm not sure but I feel like he's just using me for sex like every time after we've had sex he just pulls away for a while and I get stood up. He always has an excuse afterwards like he was busy.
I mean we've been together for exactly a month now and he already introduced me to his mom 3 weeks into our relationship but like now for the past week he's been distant and he lied to me saying he's gonna spend the day at home resting so he can't hang out with me but instead he hung out with his friends Wich I don't have a problem with but why lie about it. And today he said he's gonna wait for me after school but he didn't and luckily my brother waited with me so I didn't walk home alone.
Would a guy introduce me to his parents 3 weeks into our relationship even though he's just using me for sex?
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