Almost everyone is ill during their life, doesn't mean because they had something, or have something for certain period of their life, they won't be "genetically" good to have children with. What if you have some sort of disease that maybe will show in few years time? If you had a girlfriend you loved, say you spent your twenties together. Then you fall ill for short period of time, and she leaves you, because you are now "ill".
How would you feel? Love is really far from what you imagine it.
Love is work work work work x30 work, patience, mediation, forgiving, understanding, standing by somebodies side, giving up, etc.
Idk why but how you see things it really makes me feel like you are 15-19.