So you can say "I'm glad that you love it." I'm glad that you loved it." "I'm glad you love it." "I'm glad you loved it."
What is the name of the book you are using? I'd be careful of books writtin in-house for the use of one organization or one program. It would be good to see the surrounding context in which this phrase is placed as well.
To get a picture of the present subjunctive, a type of noun clause, I would go to www.englishpage.com , or just do a search. The present subjunctive takes some explaining, and I mostly reserve speaking about this to advanced students, or high intermediate. But it really depends on the student. Everyone's different.