An honest question...

[Zoomer]

My mind wanders sometimes, and I wonder how I compare or he still thinks of others. Then I realize that line of thinking will only hurt our relationship. Besides, he married me and not them.

 

[Yitzchak]

I think it depends on the nature of the past relationship. For example, if you lived with and were intimate with someone for ten years , it is harder to break that connection than it is to forget a one night stand. But in that case we are talking about relationship and not just the sex.
The real issue to me is the fact that sex takes a relationship to a much more intimate level than just a dating relatinoship. It is always harder to get over deeper relationships.
Of course it depends on the person. Some people connect very quickly and others not so quickly.
It is the level of connection that is the issue. And whether that conenction has been completely broken. only you and the Lord know the answer to that one. But your spouse may need extra re-assurance about it.
So bottomline, it depends. It is a possiblity but not always the case. and it can be overcome.