My spouse has been involved with someone online. It feels like an affair to me but he/she say's I'm taking things too seriously. Am I over-reacting?
No, I don't think you are. Any word, feeling, touch, or desire that belongs to you but is given to someone else falls into the category of an affair and will certainly feel like betrayal to you.
Today's technology allows for easy access to online relationships. These relationships can vary in many ways: some involve only writing through email, chat, or message boards; some involve pictures or video; some involved real-time video and talking. The level of contact varies from text-only writing to arranging face-to-face meetings, but all levels of contact can result in the kind of intimate communication and interaction that was promised to the spouse alone.
There are web sites dedicated to helping married people find relationships outside their marriage. Instead of helping couples move through their problems, they provide an easy way of escape. In my experience, online affairs can be nearly as devastating as offline affairs...and sometimes more-so. You should approach them in the same way as other kinds of affairs and get help working through them.
