His middle name could be “Remarkable.” Tammy Whitmier: “He was a very generous, giving, loving man.” Tammy’s father, Sgt. Maj. Whitmier, served 27 amazing years in the U.S Army.

Tammy Slaton didn't get the reaction she hoped for when telling her family of her engagement. In PEOPLE's exclusive clip of Tuesday's episode of 1000-Lb.