My friend and my mom... Yikes!

So my mom didn't want me to text this guy anymore after figuring out we had sex (yikes) so she Immediately grabbed my phone, blocked his number, and somehow played with my phone setting so that every time he tries to text me, he is also texting my mom... Does anyone know how to change these settings back around so that my friend is not texting my mom when he thinks he's texting me?, I'm scared he's going to accidently sext my mom one day!,