Omfg they’re so cute and have great chemistry. I’ve seen a lot of people say they think Jordan shifted to male form bc maybe that’s what Jordan assumed Marie would prefer/only kiss, which could be true and maybe it is one of Jordan’s insecurities that they should conform to heteronormativity when it comes to romance/intimacy (hence female form w the phaser dude). But I think it was mainly force of habit for Jordan bc when they fight, they shift to male form when an attack is coming due to their invulnerability power and then can shift back and forth throughout the fight. I feel like when it comes to other forms of vulnerability, Jordan may shift to male form as a defense mechanism in case they get rejected by Marie, etc.
Side note: at first I was a little annoyed that the writers had Jordan shift right before kissing Marie, but I think it was a good way of showing Jordan and Marie’s chemistry in both forms (female form starting to go in for the kiss) and that Marie likes Jordan for Jordan and likes them in any physical form.