I still try to figure this out, so sorry if I just write thoughts down, but after Christmas and meeting my boyfriend's relatives I thought about this more often. 

Normally I'm very anxious, I have social anxiety. For his family I'm the friendly laughing girl, as they just met me now three or four times. I mean, they just could not know my real me. So of course, with my anxiety of being called weird, I tried to be the best girlfriend which I'm totally ok with. Beside the fact they don't have to know how anxious I am.
I still thought a lot about being called so nice and friendly - it was like this my whole life. And that made me think that just my fear of people's reactions and my fear of failing kinda 'rescued' me always from suffering severely depressions I guess. So I'm more anxious about everything and my future that I still go on with everything than do what I really feel to do - not that much. 
Im still knew to this "anxiety thing" because I always thought I'm just a silly kiddo and also silly adult, but yeah, no. It's anxiety. Naming it and frame my life and symptoms does help a lot, but also discover new things like these thoughts I wrote right know