While the romances in both Mass Effect 1 and Mass Effect 2 are largely one-night experiences, the romantic relationships between Shepard and their squadmate paramour in Mass Effect 3 are generally more complex and mature. Related: How to Romance Kaidan Alenko in Mass Effect 3 She is one of only three squadmates with this unique mechanic the other two options are other former Mass Effect 1 squadmate romance options Kaidan Alenko and Liara T'Soni. Unlike most squadmate romances in Mass Effect Legendary Edition, Shepard does not need to have romanced Ashley previously to romance him during Mass Effect 3. If Ashley was chosen over Kaidan as the Virmire survivor, she will again appear as a squadmate in Mass Effect 3 starting in Priority: Mars.
Choosing who to romance can be an important part of any Mass Effect Legendary Edition playthrough, and if Shepard seeks some stability, they may consider beginning or rekindling a romance with Ashley Williams in Mass Effect 3.