He might tell you about his hopes, dreams, and even fears. He might also ask you for advice, even about his own relationship (awkward). If he does open up to you about his feelings for you, have an open, honest conversation with him. Let him know that even if you were (or are) interested, he has a spouse and a family to think about.

For instance, he might cancel a date night with his spouse to go hang out with you and your friends. A married guy who wasn’t harboring secret feelings for you probably wouldn’t go to that length just to hang out with you.

He might even remember things that you told him in a totally off-hand way. If you ever find yourself thinking, “How did he remember that?!” then there’s a good chance he likes you.

You’ll probably notice that he makes disparaging remarks about the people that you’re dating, too. This is because, although he won’t admit it, he wishes he could date you.

Not only does hanging out alone give you two a chance to bond, but it lets him display his feelings more than he could if there were other people around. Try gently reminding him that he should probably be spending time with his spouse, not with you. This sends the message that you aren’t interested in breaking up a marriage.

Keep in mind that some people just blush more easily than others, especially if they’re fair-skinned.

He might also angle his body toward you when you two talk. Read his body language whenever you two are together to see if he’s actually interested in you.

Since he’s married, he might only flirt with you when no one else is around. However, if he doesn’t care about getting caught, he could do it in front of others, too. Even if you do like him, try not to flirt back. He’ll likely use your flirting as an open invitation to pursue you, which can be a disaster if he’s still married.

If he’s bold, he might even brush your hand with his. To send the signal that his touches aren’t welcome, gently lean away or move your body away from his whenever he gets close.

If you try asking about his spouse, he might try to downplay things or move onto a different subject. To really hammer home the point that you aren’t interested, ask about his spouse often. Keeping his partner at the forefront of his mind might incentivise him to back off.

This type of behavior is rarely subtle, and it’s likely that his spouse will pick up on it.

He’ll probably also buy you a gift for your birthday, even when you don’t remind him about it. Remember, a guy who likes you will always remember important things about you.

His friends might also be catching onto the fact that he likes you, which could create tension within the group. If the vibes feel a little off, that could be why.