I want you to suggest me some very good greetings for Chinese New year which can make my girl friend think that I love her so much and I love her Only :p
Hm, Chinese New Year is not just between BF and GF, all Chinese celebrate Chinese New Year. I think this is the reason why someone voted down this question, but never mind, there is something much more important.
Since you asked. and there must be related with Chinese New Year, greetings, GF. I think you can say... ok, here we go.
honey, 新春快乐，我希望和你度过下一个甲午年。(please, only for the Chinese New Year of 2014)
In English: honey, happy new year, I want to spend my life with you forever.
Bro, this shows your respect of Chinese culture, shows your sincerity, shows you are willing to put effort to overcome anything to be with her, the exact result is much less important than your spirit.
PS: I'm not an expert in this field.