Absolutely don’t.

Under no circumstances should you even acknowledge your anniversary.

Here’s a few incredibly good reasons why:

1. It reminds him you’re a love sick puppy dog ready to take him back, and so reinforces that he’s free to be a d*** as long as he wants. The “look at me, I still love you” dance is, in his eyes, a “here’s a green light to go and blow up your life while I wait for you” dance.

2. Men want what they can’t have. If he messages or acknowledges it, just completely ignore. It seems like a tantalising bait to take, and I expect you’ll crack because you think you have to show him you love him, but the only way he will miss you is if there’s radio silence. Don’t take bait.

3. Why would you want to acknowledge someone who goes back on their vows? Who doesn’t respect you enough to try and save the marriage? Have some self respect - you deserve someone loves and respects you just as much as you do them. “Happy anniversary” from him should be met with “oh that’s today? … I’m going out.”

Personally, I’d book a night out with friends. Go out for dinner to a nice restaurant and then go out dancing or to a bar afterwards. If you have kids, tell him he needs to watch them. Turn your phone off, go and have a great time!