Physical & Emotional Abuse Support Group
Abuse is a general term for the treatment of someone that causes some kind of harm (to the abused person, to the abusers themselves, or to someone else) that is unlawful or wrongful. No one deserves abuse, period. Abuse can be emotional, physical, or sexual.
As for your son, talk to him about it when he needs to know. He may not need to know about a first date, that's up to you. But as long as you make sure he knows that no new man will mean you love him less, and that no new man will be his "new dad", then he will just have to accept that you are a woman and have a right to your own happiness.