Loving V.S. Hurting

按照外國人的禮儀，當課程完結，學生應該禮貌上說一句：
Thanks for teaching me. I've learned a lot.

如果談一段感情就是上一課，分手後也應該禮貌地送上一句多謝，你選邊句？
1. Thanks for LOVING me. I've learned a lot.
還是
2. Thanks for HURTING me. I've learned a lot.

選的應該是第二句吧，至少讓他一世內疚。