Red_star99

jaehearys was anti polygamy after all his sister was one of the women that maegor married (raped) when his daughter brought it up he became even more angry with her

yeah,rhaenyra could have easily annuled her marrige because her husband is steril(though is not like two years without children is unatural even in modren time ) and married harwin then married her children to the velaryon twins instead she decided to gamble and have children

jace was born in the same year as the wedding i think that it simply that rhaenyra got knocked up by mistake before even trying with laenor,and the velaryons couldnt say any thing because if rhaenyra die of high treason thier path to the iron throne is destroyed and it gonna be full hightower takeover so the got forced to play the long term plan and marry jace and luke to velaryons