I spent $4.5K on Taylor Swift tickets for my teen — she took her friend instead

There’s “Bad Blood” between this mom and daughter duo.

A mother in Massachusetts was thrilled when she managed to secure two tickets for her 19-year-old daughter to see Taylor Swift on her “Eras tour” at Gillette Stadium — but she’s hurt and can’t seem to “Shake It Off” after her daughter chose to take her bestie instead of her.

The mom — who was only identified as Susan — recalled her story on the “Country Mornings with Ayla Brown” radio show, explaining she’d splurged on the concert for her girl’s 19th birthday.

“God, I was so hurt. I was so hurt,” Susan told Brown on May 24, when asked about how she felt when the teen told her she was taking her childhood best friend and not her.

“I really wanted to go big [for her birthday],” she explained. “I mean, she’s turning 19. Like, we’re getting closer as friends, not just mother-daughter. So I gave them to her.”

She said her daughter was “so super excited” when she received the tickets.

“We’re both screaming, having a great time. You know, I thought I was going to go,” she complained. “I thought she was going to invite me. But she ended up inviting her best friend.”

Furiously, the mom added her daughter asked her to drop her off and pick her up from the event too — which she flat-out refused to do.

“She has the audacity that day to say, ‘Hey, Mom, can you drive Casey and me to the show?’” she raged, saying she’d made plans with her best friend after not getting an invite to go see the “Love Story” singer live.

“You know, I have my own friend, and I’m going to go do stuff with her. And you two have a great time,” she told her daughter. “So she was kind of upset,” Susan told the radio host, “but not too bad.”

Meanwhile, her daughter and friend called an Uber to take them to the concert — $200 there and $200 back — which she asked her mom to pay for.

“We were having breakfast the next day and she says ‘I’ve got to bring something up. I’m kind of upset that you didn’t drive us’,” the mom recalled.

“I can’t believe it,” she snarked. “And it was that much money.”

Repeating that she “doesn’t feel bad,” the mom said she got up and walked back into her room.

“Here’s the thing,” she confessed. “I’m thinking about asking her to pay me back the $4,500. So, I just don’t know what to do. I’m really upset, but am I a bad Mom?”

Brown posed the question to Twitter followers in a poll, resulting in a near-even split between those who call the daughter “ungrateful” and others who believe mom had overreacted.

“Susan bought them for her daughter. Not for the two of them, apparently,” one Twitter user pointed out.

“You can’t ask her for the money for the tickets,” another said incredulously. “You gave them as a gift!”