love isssue...need help

i need help very badly.I'm 22 years old,i have friendship with my teacher. Before the start of the relation he told me that we cannot marry and i was okay with it. He didnt tell me the reason why we cannot marry and i didnt ask too coz i was okay with it but later on i got interested in him,i developed the desire of marriiage with him but i didnt tell him. Later on when i told him that i wanna marry you then he said that its impossible coz i had friendship relation with his brother. i said okay but one day he told me that he loves a girl,i was so shocked to listen this coz i asked him many times before about this but he always lied. I AM SO HEART BROKEN,i love him truely and want to be with him... I decided to leave him but i can't, i still talk to him,he considers me just a afriend but i love him.. When i talk to him i feel jealousy,different thoughts come in my mind related to him. I am so confused,wana leave him but cant live without him ..plzzzzz somebody help me plzz

All you can do is be there for him and maybe then he will see that you're the one.

Remember that if your love is not accepted in one place, it will be accepted elsewhere - you just have to be willing and open enough to see it. He may not want to be with you, but for your sake, you will have to move on and take care of yourself for a while. If he hangs out with you as a friend and it's too much for you to handle, be honest and tell him that you can't do well having a friendship with him because you fell for him so hard. It will make things easier in the long run.