The heat capacity is the energy required to raise the temperature of a substance.
With the value of this amount of heat known, we can know the amount of heat that will cause a particular temperature change when added or removed from a substance .
Heat capacity is a function of mass and specific heat capacity of a body
The specific heat capacity measures the amount of heat required to the raise the temperature of 1g of a substance by 1°C or 1K
Different substances have different specific heat capacities and hence will require various amount of heat to change their temperature.
Metals usually have low heat capacity because they are good heat conductors and would require little amount of heat to change their temperature.
techinically no. unless he does something with her. or kisses her. but i would break up with him if he doesn't like you/not interested. i am so sorry this is happening to you