The importance of love is reflected in literature, movies and music, therefore it seems necessary to understand what role technology plays in relation to love and the roles it could to play in the future. We review studies related to Love in HCI and we identify a lack of consideration of philosophy as a background for love understanding. Based on literature review, we offer a proposal of guidelines for designing technology that aims to improve loving relationships. Besides, we explore principles of engagement with technology that may be important when designing love-promoting technology. Finally we propose a practical design example. Keywords Productive Love, affective technology, care, respect, responsibility, knowledge, lovers, family. ACM Classification Keywords D.2.2 Design Tools and Techniques: User interfaces; H.5.3. Group and Organization Interfaces: Theory and models And H.5.3 Group and Organization Interfaces: Evaluation/methodology;Copyright is held by the author/owner(s). C...