<human>: Give me the gist of the text in a nutshell

Have been with my girlfriend for 7 months now and we where in bed, really romantic, candles lit and she started to ask me about what the difference between love and like are. Iv been wanted to tell her for about a month that i was in love with her but thought it might be to early but i thought i was would just go for it so i said to her when things went quiet. "im in love with you". Now she is Asian so her english is very good but not 100% so she asked me what thats means and if its means the same as "loving someone" I said yes it does and she said she loved me too. My problem was i didnt expect the first things to come out of her mouth after i said "Im in love with you" to be a question about what it means, so it kind of threw me abit and lost the romance i felt in the situation. So during the moment after i kind of made a funny noise to try and make her laugh. She laughed and said "nooo give me the romantic moment back" basically saying i had broken the romantic moment by making a funny noise. I didnt mean to do this i just didnt feel the romance so didnt realise. The romance kinda of broke for me when she asked me what i meant by "Im in love with you".

My question is "how important is this moment for girls? Have I ruined the relationship by being silly in this srs moment between a couple? I am worried i have blown it with a girl i love because i might have ruined a precious moment where you say i love you to a girl.
(bit of info about my personality that she doesn't know - I suffer from anxiety so i overthink things and am insecure but i obviously hide this from her because i think i will eventually get over it. I prefer to fake it until i make it than tell her the truth)
<bot>: Said i love you for first time, made funny noise and ruined romantic moment am now worried i have destroyed relationship cause of importance of first saying this.