It's bad to cheat on one's partner in a relationship.
Terry has been dating the same woman fora year and their relationship hasn't worked for quite some time.
Terry wants to pursue other women.
Terry communicates to his partner that things aren't working out, leaving her before exploring his other options.
Terry goes after other women while he's still in the same relationship.
Terry and his partner are able to end things amicably.
Terry's partner finds out what he's been doing, and they have a very dramatic break up.