I need to explain this.
The "Wie passend" I mean is very ironical. Somebody tells you "I HAD to make this decision because..." and gives you some reasons for it, but you know that he´s lying to himself about that, because he just chose the easy way out and the consequence is that he hurt somebody.
The person who answers "Wie passend" here actually means "Du hast dir das aber passend gemacht/geredet" and wants to tell the other person that he/she doesn´t believe the arguments.

" How suitable/fitting/convenient.."

Which word do I use?

Thanks!!!