Hi guys, i am new here. From Australia
i have been going out with a girl who is 21 years old for about 8 months
My girlfriend has never said sweet thing to me if i don't Initiate it. Sometime i sweet talked her but she only smiled and never say anything sweet back to me except some really short phase like "i love you too". However, every time if i mad at her or she did something pissed me off, she will become so actively to say something sweet to me, and i usually forgave her straight away. Sometime i am not sure whether she love me but she always ask me to her friends parties and asked me publish our relationship on Facebook.
I am kinda sick of talk sweet thing to her without any response. do you guys have any similar case? Need some advice

Many thanks!!