Couples who are separated, whether informally or legally, are still married in the eyes of the law, regardless of how independent their lives have become. This means that if either spouse has a sexual relationship with another person during the separation period, they have probably committed adultery.
Is it still classed as adultery if you are separated?
In the eyes of the law, yes. If youre separated from your husband or wife and you sleep with another person of the opposite sex this is adultery under English family law because you are still legally married.
Can you date if you are legally separated?
Yes, you can date someone else after you separate from your spouse. You might not want to depending on your situation. You should discuss this with your divorce lawyer.