Dear MUB,

Today makes 9 years that I’ve been living with my boyfriend. We have two amazing children, but I have a strong feeling that my 6 years old son might not belong to him.

When we first started dating, I still had feelings for my ex-boyfriend who I continued to sleep with.

Shortly after, I found out that I was pregnant. It was at that point that I decided to stop seeing my ex and get serious with my relationship. It was when my son turned 2 years old that I started to realize that he resembled my ex. Now that he’s 7 years old he looks just like him.

My boyfriend is clueless since he has never seen my ex. I feel really embarrass and I know it is wrong to keep something like that from him. What should I do? Should I just move on with my life since he is not suspicious? Or should I confront my boyfriend about it?