The verb ache has 3 senses (first 3 from tagged texts)
1. (3) hurt, ache, suffer -- (feel physical pain; "Were you hurting after the accident?")
2. (3) ache, yearn, yen, pine, languish -- (have a desire for something or someone who is not present; "She ached for a cigarette"; "I am pining for my lover")
3. (2) ache, smart, hurt -- (be the source of pain)