Knowing if someone truly loves you can be tricky sometimes because some certain people are good at pretending to love someone just to get anything which they want from the person,but i think a good way which you can use to know if someone truly loves you is the way the person cares for you,the way they show affection to you,the way they are bothered about you whenever you are unhappy,someone that loves you would want your happiness,they will want you to be a better person,they will always to be with you and hear your voice and see you smile,they keep thinking about you all the time..