Is marrying someone for status and hiding a lifelong love as bad as cheating?

If you were in my aunt's shoes (she just discovered who she really married just weeks ago), would this be just as bad as cheating:

- They've always been somewhat cold and distant during your marriage

- After 25 years of marriage, you discovered an old photo of the person they've always wanted. Someone he knew from his youthful years, before meeting my aunt.

- In the back of the picture, it's written ''My love, forever''

- An old text message, explains that many years ago (when they were young and you were in the 6th year of your marriage) he lied about being single and was starting to go on dates.

- It never progresses to an affair (they only kissed once) because the woman was pissed off and ditched him after finding out he was married with two kids (my cousins). She never wanted to see him again.

- Over the years, he would keep obsessing with her, thinking only about her even when being with my aunt.

- Lastly, she confronts him with another text message from 10 years ago where he confides to a friend that he would've left them all (my aunt and his two kids) if she would've reciprocated, that he was the love of his life, that she should've been with him, that if she were to show up on the door she would leave and marry her. He wasn't in love when marrying my aunt. My aunt always had her own assets and business too; slightly higher than him. It was for appearances and status and not to lose too much if they had to separate.

- In ended in a confrontation, followed by her expressing her full distrust and viewing him as the most despicable and disgusting man she ever met. She feels deep contempt for him. Is this just as bad as just cheating. Making the person think you're loved but you're just the 2nd option (the rebound they don't even fantasize about) and that they would've left you and the kids if that person show up, even marry them.

Is marrying someone for status and hiding a lifelong love as bad as cheating?
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