First let me start by saying that I looove the topic! Then it might be useful to mention that I tend to define love as a feeling that lives in me, and the behaviours that come from that. I think love can hurt sometimes, for example when people we love pass away. I think it's precisely because we love them so much that their absence hurts. However, I would make a difference with the situation where we feel hurt because of someone's behaviour. If that behaviour is inappropriate, hurtful, disrespectful, irresponsible or just showing a lack of investment from the person, I would say that we are maybe not talking about love anymore... could be attachement, could be maybe lack of self love. From my own experience I would say you can love someone out of a bad behaviour. And oh boy did I try to overcompensate with the love I gave for people that just weren't as invested as I was into the relationship. 😅 And I think it can also happen in friendships, not only in romantic love.