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You shouldn't have to be a liar to make someone to love you. You shouldn't be afraid of losing someone that you will do anything to make them stay.
True love can only come when you accept yourself for who you are and when you are filled with yourself not when you look to someone else to fill the empty space.
It's time for you to stop struggling in that relationship and be with the one who makes you forget how terrified you are of falling in love even though you miss him/her or love him/her more than anything else, seize from that struggle.