Okay so to alot this is going to sound crazy or creepy but here in India we kinda can marry our 1st cousins 
So I'm a male 21 and I have a first cousin 25 female.
So in 2019 we had a thing like just texting romantically ugh like using cute and heart ❤ emojis thats all . And I made her some sketches of her then boom she blocked me like after I asked her out on dinner but I didn't say its date. 
So we didn't speak till now. What is this 2021 July!  From January 2020 to july 2021 no word and I got an invitation of her wedding. 
Like she has an engagement on 25 july which I'm invited too.  So I'm bothered like how would I face her? Idk what made her block me.
And I don't even know for what I'm asking help! 
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1 I'm afraid to face her
2. I am confused should I go or not
3. If I get a chance to talk what should I say?
4. Should I never show my face?