You talk with husband directly . & Solve your problems. Don't doubts on mind .First ask him then what he told you .then decide.

Talk to your husband regarding this issue, if you are not satisfied with the answers you can go for couple counseling

Hi... Please take an online consultation from a Psychologist before taking any action. It will help you get a better understanding of your situation and consequences of your actions. We are all human beings and can develop emotional attachments towards other people even if we are married, but we can't cross a certain boundary as we are committed and under oath in a marriage to be loyal to our partner. You need to figure out first the limit of his attachment to that particular person and is it romantic/sexual or just an emotional attachment. Try being more empathetic while acting upon it as it can impact your marriage and your life.

It is better to talk to your husband about the texts and your feelings regarding the same.. If you are still not convinced what he says, then, probably , you can insist for a couple Counselling.. Because, we will Be listening both of you individually and we can support you by giving you some clarities and guidance..