Freyja is the Norse goddess of beauty, love, sex, fertility, seiðr (Old Norse magic practiced in the Late Scandinavian Iron Age), battle, and death. Along with being a goddess, she is the leader of the Valkyries. In myth, Freyja and the Valkyries would have first choice of the fallen warriors on battlefields. Those chosen would go to Freyja’s hall, Sessrúmnir, in her realm of Fólkvangr. The other half would be claimed by Odin and go to Valhalla, in Asgard. A folk belief was that the Aurora Borealis was the result of light flickering off the armor of Freyja and the Valkyries as they rode to their missions. Freyja’s chariot is pulled by two large cats (thought to be gray).
The daughter of the god Njörðr and the twin sister of Freyr, Freyja was born a member of the Vanir. After the war between the Æsir and the Vanir, Freyja and her kin were accepted by the Æsir (click here for more information). She married the god Odr, who she loved dearly and grieved for when he left her to wander the world. She used a cloak made of feathers to transform herself into a bird (usually a raven or falcon, depending on variation) to search for him. She wept tears of gold (another version states that her tears turned into amber when they fell into the sea).
In Thrymskviða, one of the best known poems from the Poetic Edda, the giant Thrymr steals Thor’s hammer, Mjölnir. Thrymr demands Freyja as his bride in exchange for Mjölnir. Instead of sending the goddess, Thor is dressed up as her for the “wedding” and travels to Jötunheimr with Loki, who poses as his bridesmaid. During the ceremony, Mjölnir is placed into Thor’s hand, which he uses to strike down the giants.
Offerings and associations:
As for disposing of offerings, some people choose to bury them, burn them or consume them. It really depends on personal preference and on one’s relationship with their deity, as well as the type of offering. Here is a post discussing Heathenism and consuming offerings. This post discusses various ways of disposing non-food offerings.
References and resources:
(generally, it’s fine to have two altars in the same room, but it really depends on the deities and the pantheon(s). the best way to figure it out would be if you and your husband were to approach your deities and consult them regarding the altars.)