A spouse or a former spouse that was married for more than ten (10) years may choose to collect the larger of their own Social Security Benefits or fifty percent (50%) of their spouse's benefits or former spouse's benefits. Also, upon the death of your spouse, your benefits would increase to seventy-five percent (75%) of your spouse's benefits.
However, if you remarry, you can longer draw against your former spouse's Social Security account. While you should not let money stand in the way of true love, a consideration of the loss of income should not be overlooked. You should discuss the details of your particular situation directly with the Social Security Administration.
Further, a disabled child can collect the same amounts if the child was disabled as a minor and has never paid into Social Security (i.e. has been classified as disabled as a minor has continued to maintain that classification as an adult). Therefore, since a disabled child can collect against the parent's Social Security benefits for the rest of the child's life, it would be better for the parent to wait until full retirement before collecting their Social Security.