YOU SAID:
I'm glad summer is ending
INTO JAPANESE
夏が終わってうれしい
BACK INTO ENGLISH
I'm glad that summer is over
INTO JAPANESE
夏が終わってよかった
BACK INTO ENGLISH
It was good that summer was over
INTO JAPANESE
夏が終わってよかった
BACK INTO ENGLISH
It was good that summer was over
That didn't even make that much sense in English.