Most important thing for you to do here.. love yourself.. I mean honestly love yourself and decide that you deserve the very best. Usually fear of losing someone to another stems from feeling that you are less than worthy of their love and that there are people out there better than you. Well, there isn't anyone out there better than you... and you deserve the best there is... and he is so lucky to have won your love... if you keep projecting this fear you will drive him to someone else.. he will pick up on it and then your fear will create your reality. Have no fear.. love you enough.. it will all work out from there.
has he been talking to other girls?
i think you should talk to him about it :) im sure it will be okay, best of luck hun!
You THINK you love him very much...at your age, like it or not....what you are feeling is most likely not mature love....
And you're being scared to lose him to someone else, is also indicative of your maturity and young age....Don't sweat it....things will work out in the end.
you're not alone in feeling this way. put your focus on keeping him.
Deal with it.
its all down to trust,if you don't trust him why? or are you a bit insecure maybe; just think positive, and you'll see he's only got eyes for you.
first of all you are young...(well so am I lol)..but now is the time to figure yourself out and how you fit it with the grand scheme of the world! and fully grow in every way both physically and mentally. now is not the time to have a serious relationship..you can have one more like a companionship but not serious yet.
but..to answer your question,this question in itself shows insecurity in yourself as a girl and all the lovely qualities you posses that would make someone of the opposite gender want to be in a relationship and not stray to other girls. which in other words means you are not ready. it is better to be in a relationship where you are completely confident in yourself and that you feel confident in how you are captivating enough to keep the boy or man you love.
have close friends from both genders,grow,learn...discover what you like and whom you like and all that and then when you feel more comfortable and no more of yourself and how you relate and all that is when you are more ready for a relationship and by then you will know and be more confident in yourself and be able to have a healthy relationship with healthy communication and trust.
...okay rant over lol =)
Or you can just have confidence and ask him to never leave you. If he does you can get angry at him and then move on.
if you love him..trust his judment that he will se you as a very beautiful and i have know doubt a faithful person..if he moves on then he is an *******..plain and simple