matters/affairs of the heart

: a subject under consideration

: a subject of disagreement or litigation

: the events or circumstances of a particular situation

: to form or discharge pus : suppurate

: to be of importance : signify

: commercial, professional, public, or personal business

: matter, concern

: a procedure, action, or occasion only vaguely specified

: a hollow muscular organ of vertebrate animals that by its rhythmic contraction acts as a force pump maintaining the circulation of the blood

: a structure in an invertebrate animal functionally analogous to the vertebrate heart

: breast, bosom

: love:2

: hearten

: to fix in the heart