What drives someone to lose themselves in love to the point of neglecting their own well-being?

What is it when you have an anxious attachment style but struggle to share and show it to the people around you, not because you don’t trust them but because you are physically unable to. Does it make you an avoidant or an anxious avoidant?
What advice would you give to someone with older parents who worries about them missing out on future milestones like weddings or grandchildren?
How do you think universities can strike a balance between pushing in one direction (such as being curiosity-driven) and reducing breadth?