Supervillains have the same desires as their goody-two-shoes counterparts, and that includes finding romance. It’s a little difficult to come by, however, when everyone despises them (including other supervillains). Since supervillains tend to be egotistical and territorial, allowing the seeds of romance to blossom can require more care and commitment than they’re capable of.
Source:https://www.cbr.com/menacing-comic-villain-couples/