A wealthy New Jersey real estate investor is embroiled in a nasty spat over a $1.45 million condo and a diamond engagement ring.

Jeremy Grunin showered Marcia Gomez with expensive gifts during the brief time they were dating each other, beyond just the apartment and the diamond ring, according to court pleadings filed in Florida. The Miami-Dade Circuit Court lawsuit concerns the $1.45 million Aria On The Bay condominium, which Gruin claimed was titled “as joint tenants with the right of survivorship” on the condition of the former couple’s planned marriage. Grunin, represented by Michael Kreitzer, a partner at Greenberg Traurig in Miami, asserts causes of action based upon alleged breach of implied in-law contract and unjust enrichment, and sought a declaratory judgment.