I watched Bokura no Jidai today (Jun with Eita and Noda). In the show, Jun said that he was not good with children before but now he thought they were so adorable thanks to interactions with his friends' and relatives' children. He said he thought a lot about how to support his children until they were 20.
He said he was not sure if he could marry right now. Then Eita said "You can. Just go ahead". Jun looked numb while Eita was smiling.
Noda said that "Why don't you spend time to think about a wife rather then about children?".
Then Jun said "Because I dont think I will get married in the near future so that's why I think a lot about having children and how to raise them up instead". (but later he said that if he wanted to get married to someone, he might do it unexpectedly).
Well, Jun, its not a good excuse. why don't you just say "because I already have someone so I don't need to think about a wife-to-be but children with her" hehe.
Note: I summarize the conversation from a video in Vietnamese sub (credit
saobang2211 . So the translation may not be 100% accurate.