I ship KDY & PJG all the way, KDY personality could compliment PJG limidity, she has been patient enough to wait/ not pursue him romantically & instead she stay by his side as his only friend who always been there next to him, because she understand him well.
YTY & YMH, not shipping them per se nor interested at theirs but I think they've been established as a couple, I think them reunited is only a matter of time.
YTY & PJG, eww No, because she was introduced as his mom right from the start so I can't look at her any other than as his only mother.