Can I start a new romance after I finished the story?

It really depends on the person. As much as i love the ME series i noticed the more episodes came out the less playthroughs i had with them. Like, i did 2 PT's in ME1 because at the time i started playing it ME2 release was already soon. In ME2 i had about 7-8 playthroughs and about 4-5 NG+ probably thats the episode i loved the most. Then ME3 came out where i had 3-4 PT's in total plus 2-3 NG+ but i finished in total only one NG+ the rest was abandoned about halfway of the story. However i invested an extra 401 hrs 19 minutes and 29 seconds in multiplayer 😃 - N7 HQ data with my old account which i thought i lost but later it turned out i didnt.

Now that Andromeda came out i finished 2 playthroughs in total and now in my third which should different experience because its a female also my very first biotic in the entire Mass Effect series i just cant play more than a hour at one go. Its certainly a long detailed game and i can understand for some people one PT is enough because it takes 'bout a month if you play 2-3 hrs a day to finish 94% of the game and yet there's the rest 6 which is another 5-10 hrs.

So i noticed the longer the game gets the less patience i have to play it over multiple times.

NG+ is something that can be considered - dont know if they fixed the enemy hp scaling - still it takes tens of hours unless you do only the required missions but even then it takes imo about 30-35 at least.

The open world is nice but there's just so much to do that its exhausting for many people.