<human>: Can you provide a brief overview of the text?

Hello, so i need some advice, and i dont know who to ask, so i thought i'll try it here... 
so me (20) and my boyfriend (19) are together now for 2 years, and living together for almost 1,5 years
i love him a lot, like soso much, but sometimes i just fell towards him, like towards a brother... 
he is the best boyfriend i could wish for, he does everything for me, and we often go out to eat or so
the only thing thats bothering me, is that we dont have a lot of sex or passionate kissing, and i guess its normal at some point, since we have been together for a long time.. but i still feel young, and not ready to give up my hornyness, but i'm just not that attracted to him like i was in the beginning, i dont know how he feels.. 
so he loves me so much, its a bit overwhelming, and i have the feeling, that i will destroy him, if i break up with him, we are best friends... 
also i met someone, i'm attracted to, and i feel really guilty, but it got me realise, that i miss having the feeling... i fell like a horrible person.. 

so do you guys think that i should try to make the relationship work, and that this is normal, or do you think i should move out? i dont know what to do...
thx for your opinions
 
also sry for my bad spelling..
<bot>: the spark in my relationship is over, and i want to know if thats normal, to not really want sex anymore with youre boyfriend