“Ghost Adventures” star Aaron Goodwin is showing thanks for all the love and support he’s getting after cops arrested his estranged wife for an alleged murder-for-hire plot.

Aaron posted about the arrest Friday for the first time since we broke news of her bust, telling his followers … “Thank you everyone for all the love and support through this emotionally trying time. It has really helped a lot and I appreciate you all.”

We broke the story … Victoria Goodwin was arrested earlier this month and booked on solicitation to commit murder and conspiracy to commit murder charges. Cops say she was messaging a Florida inmate about getting out of her marriage with Aaron when she allegedly sent the message “Am I a bad person? Because I chose to end his existence. Not divorce.”

Police say Victoria and the inmate — convicted killer Grant Amato — earmarked a little more than $11,000 to pay for the hit … and the alleged plot was only discovered when cops found the inmate’s contraband phone, which allegedly contained messages with Victoria.