But that's not happening yet it's still an on going manga
Not YET. ;) But in all honesty, I'm almost sure they'll survive and stay together...We're talking about Yamane Ayano, the master of fanservice, and this is probably her most successful manga. It's highly unlikely she'll kill off one of her best-loved characters or break up one of her most popular couples.
This manga doesn't have the "tragedy" tag so maybe they'll live happy ever after.... Right?