TV's Frink said:

That definition of "love" is highly debatable.

I don't disagree that something someone does won't harm a relationship, but it won't always end it.

You say you believe homosexual acts are wrong. Why?

To understand why we believe homosexual acts are wrong, you have to understand what we, as Catholics, believe about sex. We believe that the primary purpose of sex is for procreation of the human race. Secondary to that is that it is an expression of love between a married man and a woman. (This may seem extremely limiting to non-Catholics, but studies such as one that shows that those who only have sex within marriage are far less likely to divorce are examples of why we believe what we believe besides the fact that much of it is covered in the Bible.) The first is why contraceptives, homosexual sex, sterilization, masturbation, etc. are not permitted by the Catholic Church. It is a broad topic, so if you have specific questions I will answer them as they come, rather than writing a full-length essay on the subject. :)