HI @
Catie96. Sorry you are going through such turmoil, and welcome to the forum!
Just so we can know, what are you most hurt and upset over? The porn, the fact that you found the dating app, or both? Do you feel betrayed because he may be seeking someone else outside of your relationship, but you're not sure if he is? What are your feelings about him having a porn habit? And where do you stand on porn itself within a relationship?
Some people find porn perfectly acceptable in a relationship, and others are very hurt by it and feel it is a betrayal and similar to cheating. Porn addiction takes things to a whole different level and can become problematic if it interferes with the intimacy in the relationship.
So I wondering how you feel about porn, and what is upsetting you the most?