Am I going to lose my bf please help?

Okay so im dating this guy that used to live right next door to me 3 yrs ago we were really good friends but then one day he moved away to maryland because his dad was in the military and they had to move alot. Well ive always had a little crush on him when he was here but never actually got to tell him and so one day we got back in touch by facebook and mostly texting and when we did call each other i had my other friend (joe) on the phone that knows him as well from back then.. but anyways we somehow found out we had the same feelings for each other and we woundered why we never dated back then. Well now we are sortof in a long distance relationship untill he visits and moves closer which he will because his parents and my parents know we like each other as well.. and he claims he loves me. and well we've been texting more than we talk on the phone and he has been wanting to call me but i keep putting him off for some reason i really dont like talking on the phone because of akward siliences but in person id bee just fine talking to him or anyone else its just phone conversations with people i dont see everyday is just weird to me and we rarely have anything to talk about anymore because he lives on the otherside of the state from me im from colorado btw and so i was woundering if someone can give me advice on how to call him and not be so nervous an so self aware and how to just be myself like tips and stuff that'd be nice because i really dont want him to end this over a stupid phone call you know or if you can just give me some tips on what to talk to him about and not boring things either just anything to comfort me my goal is jsut to have an easy going phone call for now untill i get used to it THANKS if you comment :)