Relationship

hi my name Rachel I have posted on here before. Basically I have Asperger and I got a boyfriend who loves me to bits. My boyfriend isn't on the autistic spectrum and doesn't care that I've got it the issues I'm having is going out with his mates going to his local for a few drinks and meeting his parent. I'm 23 years old but my mental age is younger I'm afraid people will judge me because of the way I behave. My boyfriend who is 21 has reassured me that know one will judge but the fear still there I'm also afraid I'm might be getting to clingy around him has anyone else had issues like this and what advice could anyone give me. Thanks