Girl friends

Bell🧜🏼‍♀️ • My 2 angels 👼🏼 My Taurus & my Gemini. ♉️ ♊️
Okay so my boyfriend has mentioned going to the beach on Sunday with his boy mates and their girlfriends. The problem is that they all know eachother and I don't know any of them... I have really bad anxiety and I get so nervous when I'm around girls and I don't know what to speak to them about or anything. The fact that they are all friends and close makes me feel 10x worse! I don't know what to do 😣 my boyfriend got really mad at me and said "I'll just take somebody else then shall I?!" because I said I'm going to feel like the odd one out, I wouldn't like to go. I never said I WOULDN'T go. I just know I'm going to feel so uncomfortable. Does anybody see where I'm coming from or am I a twat? Please help :(