The couple has three children together, as well as Heidi's 7-year-old daughter from a previous relationship, and Heidi is reportedly concerned about how her husband's anger is affecting their family.
TMZ also cites Heidi’s extremely successful career as another reason for the couple's growing estrangement.
Heidi tied the knot with the pop singer in May 2005, and according to early reports, she’s planning on filing for divorce next week, citing "irreconcilable differences."
In a joint statement to Us Weekly, they explained, "While we have enjoyed seven very loving, loyal and happy years of marriage, after much soul-searching we have decided to separate. We have had the deepest respect for one another throughout our relationship and continue to love each other very much, but we have grown apart. This is an amicable process and protecting the well-being of our children remains our top priority, especially during this time of transition. We thank our family, friends, and fans for their kind words of support. And for our children's sake, we appreciate you respecting our privacy."
Heidi and Seal renewed their vows for the sixth time this past May.