User blog comment:B214/Volume 17 spoilers./@comment-1359322-20140224074737/@comment-24468758-20140225080704

Asia's character was always more fitting for a normal romance in my opinion.

Her jealousy and pouting when Issei even just compliments another girl is getting old and thinking she would be left out or neglected just because Issei is in erotic situations with the other girls is starting to annoy me, because it destroys the moment between Issei and the girl(s) in that situation.

Rias was also very jealous and mad whenever Issei got close to one of the girls before they officially became our bakauple and everyone except Rias always knew that she was the undenialble and unchanging no.1. Rias tried to monopolize him from the very beginning while Asia knew she could not win against Rias and hence accepted polygamy as the only way, but still showed this behaviour of hers in every situation, for example before the trip to Kyoto:

"How! How can this be... Not only Rias onee-sama, but even Akeno-san and Koneko-chan too! Ooh ooh ooh, leaving out just me...? Unacceptable! I have to join in too! Hey--!"

Asia jumped on the bed! Grabbing my leg, she hugged tightly with the determination of never letting go!

"I won't let go of Ise-san! We have to sleep together tonight!"

That was the moment of Akeno and Koneko to show how they would miss Issei for even just three days and Asia just jumps in to sleep together with him like always and her only reason was pure and nothing but jealousy.