If your husband is gay, he probably won't admit it to you right away. Rather, he will hide his sexual orientation and continue with his life. He may even lie to you about his homosexuality. However, you will likely find out the truth at some point. This is an emotionally stressful time for any married couple. You will be mourning what your marriage once was and trying to figure out how to move forward.
Many men who are in denial about their sexuality display strong homophobic behaviors. For instance, they will avoid scenes involving gay men or make insensitive jokes about them. In some cases, they will become very frustrated when they have a difficult conversation with someone about their homosexuality.
Other signs that your husband may be gay include frequent trips to gay bars. While he could claim that this is a way to show his support for the LGBTQ community, his frequency and length of stay at these venues can be an indicator that he has a sexual attraction to men.
If you notice any of these signs, don't be afraid to ask him about his sexuality. However, you must do so carefully and with respect. Otherwise, your questions will seem rude and hostile. It's also helpful to enlist the help of a marital therapist if necessary. They can help you work through the emotional fallout of discovering your husband's homosexuality. They will also be able to give you unbiased advice about your next steps.