“Is it possible to truly be in love forever ? Every time I fall in love. I think it will last and the asdfadsf ”

Is it possible to truly be in love forever ? Every time I fall in love. I think it will last and then it doesn't . I try to stay optimistic but it's so hard when you ??? about so many relationships going bad. Is it a matter of being with the one or simply with the one or simply trying hard enough and making scarifices ?