I think that Mon-El declined the invitation because he could tell that Kara was only inviting them out of courtesy. She didn't really want him and his wife in an apartment that they shared for months.
yeah but she. still has a right to be upset. I mean it was 7 years for him but 7 months for her. She loved mon el so much her feelings for him arent just gonna go away because hes married.
it’s weird tho bc for example on the flash, for season 3, when barry was gonna lose iris in 2017 & barry went to the future : 2024, ( to get some answers ) & he saw future barry was still not with anyone else.. now of course barry did watch iris die so it’s a little different but the same time difference ( 7 years ) & barry still loved iris just as much he did before. he was so broken without her. it depends on the situation ig.
When mon el said can you help us get home I thought Kara was gonna call the Legends to take them home on the Waverider just have them get on and Ray shrink down the Legion cruiser and off they go