Anxiety in a relationship..help!!!

Alrighty, so im 19 and I have a wonderful boyfriend who I have been dating for 8 months now (well itll be 8 months on monday) anyways, I’ve always been a little shy,sepcially when it comes to relationships,I have no idea why. Im not shy around my boyfriend or his family,but I am when it comes to his friends. Like,everytime hes asked me to go hangout with him,whether it be going to his church,or going somewhere with a couple of his friends,I always seem to make up an excuse as to why I cant go,or I just wont answer the phone. yeah, I know it seems like a not-nice-word-thing to do but,I dont know what it is. and ok,first of all,im 100% against ANYONE who smokes,drinks,does drugs and his best friend does all that so I dont wanna be around him or his girlfriend ya know? I just get anxious and nervous when im around new people.

it kinda sux cause I dont wanna jepardize our relationship so I guess I just need help on how to overcome this “shyness” or whatever.

and what are some good ways I could show him that I still love him? I mean I know the obvious answer would be to just go hangout with him and get over it,which I will.

I guess I just need a second opinion.

well thanks for the advice guys(:

xoxox kayla