Scared to FAll In LOVE!!!!?

i am so scared!!i am falling for this amazing guy!he is beautiful inside and out!!i had a huge crush on him 2 years ago but he had a gf then..just recently we started talking alot and we went out last night and had an amazing time!!!just last year i fell for someone and he broke my heartt..basically i have just had horrible luck in the love dep..i work in a store and he is security guard for the shopping centre!!im just getting so nervous to get hurt!!what can i do to relax my nerves??and is it because he is soo hot but soo sweet that i am feeling like this??