My husband blames his cheating ways on grief

DEAR DEIDRE: My husband cheated on me after his mother passed away and now blames his affair on his grief.

We’ve been married for 23 years. He’s 47 and I’m 51. My mother-in-law was a lovely lady. She was 71 and we got along so well. I was as heartbroken as he was when she died after a short illness.

She’d been great with our kids when they were growing up and she was a good friend to me.

Two weeks after her funeral, I saw some messages on his laptop when he’d left it open.