He repented too late,I became his sister-in-law

After 6 years of marriage, Vivian finally realized she would always be second to Julian's beloved sister-in-law. When he chose to save her in an avalanche, Vivian walked away. Confident she’d beg to return, Julian signed the divorce papers. Instead, his estranged, disabled older brother arrived with a proposal: marry him, and take everything. Now, will Julian realize who he truly lost?