@AiNong aawww there there! Hugs!
The ending of TTEOTM is truly devastating because we are rooting for TTJ+LSS to have that clear cut HE. It was an artistic choice of the production team to make it an OE for a more lasting impact. Now that I think about it, they are right because even after a year many of us are still here. Haha!
Like you many of us were ugly crying and devastated so the only way I could cope at that time was to read and post the HE chapters from the novel. Give those a read and see if it helps you, too.
As for that kind of love, it would probably require life and death situations like you said. However, don't settle for mundane dating. Do what feels right for you.
Xixi went above and beyond in his TTEOTM roles. His chemistry with Lulu and their acting prowess really elevated this drama. Frankly, the immortal arc was choppy coz of max 40-eps rule but they still made it work. I loved these two since Love is Sweet.