Good job, this is one of those "cursed" projects that were attempted over and over through the years but never finished.

But isn't it kind of backwards to translate the endings first and the script later?

The main reason for that is the endings aren't compressed like the rest of the script.  Once I finally figured out how the pauses and stuff worked, it was pretty easy to insert.  Though it could be slightly nicer in places if I could figure out where the pointers are!

I'm impressed that you created an ending patch, Mijae. Thank you.

If I recall correctly, at least two attempts have been made to translate Tokimemo for Super Famicom. One group managed to create a patch that translated a few of the game's first menus... but nothing else. The best info in English is some FAQs and a guide written by a team called Kimi no Soba ni.

Early in 2010, Jjjewel on the gbatemp.net forums started a fan translation of Tokimeki Memorial Girl's Side for the DS. It was finished and debugged by the end of the year. Likewise, Phoenixgoddess on the same forum managed to finish and debug the second Girl's Side DS game in about a year's time.