When does love hurt?

According to Psychcentral, the chances of infidelity over the course
of your entire relationship is 25 percent

I think it is expectation that hurts more than anything else. We expect a certain 'kind' of love from someone and when that person fails to make us feel loved the way we want to, the result is that we feel hurt.
For me, love consists of three components and if any one of these is missing, I will feel unloved.

1. Understanding
2. Care
3. Support

Keeping this view in mind, let me make an attempt of redefining love.

I have witnessed that people are more focused on things like buying gifts and being on Whatsapp for hours and meeting regularly over a coffee. Although, these actions do form a part of expression of love but these actions are like rituals that may keep a relationship alive. However, they are not the determinants of whether the love between you and the other person is true or not. These are simply ways of understanding each other on an emotional level.

The question is- Is understanding and care going hand in hand?

If understanding is accompanied with a lack of care then it simply means that your 'interest' in your partner is dying down (for whatever reasons) and if care is good but understanding is missing then sooner or later your partner will feel like he or she is with a mechanical caretaker and not a life partner.

To conclude, I think that love is a blend of understanding and care and if any one out of these two is missing then a total collapse of what you perceive as 'Love' awaits, which in turn makes one feel that 'love' hurts.

In addition to this, being in one-sided love is equally painful.