How to move on from a regret of spending too much money on someone unworthy?

Anonymous
My ex boyfriend and I was together for 3 years. I loved him with all my heart and was blinded by my love to him. A year into our relationship, he quitted his job due to his boss treating him badly, and throughout the next 2 years of our relationship, he was unemployed. He moved in with me because he ran out of money. I worked a close to minimum wage job ($20/hr), and for 2 years, I financially supported him. I never buy anything for myself, I bought him every he wants. He wants a play station and a TV. I poured my savings into getting him those. I spoiled him, I spent all my savings for us to go on vacations together. 2 months ago, he finally got a new job and dumped me quickly after he could afford to move out. His explanation was he doesn’t feel the same towards me. The other day, out of curiousity I calculated the money I spent on him in 2 years. The number shocks me: $35,000. Before I met him, I had $40,000 in my savings meant to be for a home down payment. Now, I have less than $200 in my account. I regret my stupidity so much. I was in love and blinded. I keep thinking about it. How do I move on from this regret?
How to move on from a regret of spending too much money on someone unworthy?
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