Jessica Simpson's marriage to Eric Johnson has come to an end, following a 100-pound weight loss that has left the singer feeling younger.

Infidelity on his part is not out of the question,” a source said of Jessica Simpson’s husband, Eric Johnson. “But it’s also not out of the question on her part either.

One day after Jessica Simpson announced her split from Eric Johnson, a source shared more insight into the couple's separation with PEOPLE.

Jessica Simpson is honoring her mom, Tina Simpson, on her milestone birthday. "Happy Birthday to my Mommy - the giver of abundance, love, passion, and purpose. Your light is the brightest of all-assembled by the multitudes of your individual blessings that create iridescent and unique sparks!

Jessica Simpson's 100-pound weight loss helped her feel younger, but also marked the end of her 10 year marriage to Eric Johnson.