All he will focus on is that he has been wronged and will want to seek justice anyway he can.
Any person who has frequent contact with your children can become part of a custody investigation.
Dating during divorce can poison the spirit of cooperation and affect your life for a long time after the divorce is final (and possibly after your boyfriend is history).
Legal reasons not to date before divorce As far as the courts are concerned, you are still legally married until the divorce is finalized.
If you date, your boyfriend may be open to scrutiny To top it off, a really vindictive husband might consider suing your boyfriend for alienation of affection.
This will put your boyfriend smack-dab in the middle of your divorce, which is a quick way to put a damper on your new relationship.
When you start seeing someone else, it is like rubbing salt into your husband's wounds.