I'm 27yrs old and I have a female friend whom i've know for close to 10 years. I once asked her out 8yrs ago but she never gave me a definite answer (i will think about it). After many years, we came together again as friends.

I met one of her friends at her place and i asked to know more about the girl, but instead she asked me to date her rather than her friend and she even went further to tell me that if i could win her heart, she is ready to dump all her male firends.

The questions are , is she really serious about her statements, what is the assurance that she will not leave me for someone else just as she wants to leave others guys for me. ,

Please advice