If your cousin really loves you,say yes to him,without wasting anytime.You know that guy very well,he wont be a cheater.
Doesnot matter whether you love him or not,the important thing is he should love you.
Then you will fall in love with him...InshaAllah.
My khala says marry my son,he is a nice guy but im one year older than him:DKhala says makes no difference.