The second wife Parvati was actually his first wife. She resurrected from Sita (the first wife) to Parvati the second and the reason was mortification actually! Pretty interesting tbh
Shiva only has one wife ie. Adi shakti she is like female half power of universe she is than born as sati who dies after which she is reborn as parvati.
Then Parvati also has wrathful incarnations, such as Durga, Kali, Tara, Chandi, and the Dasha Mahavidyas (ten great wisdoms), Tripura Sundari (Shodashi), Bhuvaneshwari, Bhairavi, Chinnamasta, Dhumavati, Bagla Mukhi, Matangi and Kamala, as well as benevolent forms like Katyayani, Mahagauri, Kamalatmika, Bhuvaneshwari and Lalita
these fights are so captivating wow but doesn't Shiva have four wives or am i just being stupid? How come we only see Ganeesh and three? But regardless whenever their romantic interests get involved I die a little on the inside, it makes me especially sad, like Adam & Eve really killed me. The way Thrud fell in love with Raiden made my heart deflate, no matter who wins there will be so many consequences