User blog comment:B214/Volume 23 discussion blog/@comment-81.135.250.239-20170404000834/@comment-31137559-20170404012522


 * 1) 2 has already happen. Issei and Rias have basically been engaged since he defeated Riser and took Rias back(not officially, but just in their minds)


 * 1) 3 Issei kind of has their blessing already. Probably not for their marriage, though. He got their blessings in Volume 18 and 19.