Alastair is in a relationship with a woman, his third relationship with a woman. he has dated men in the past and has also been in a healthy relationship with them. alastair admits that he has no particular sexual preference and has erotic interests in both men and women. in this case, alastair is most likely a:

Bisexual

Explanation:

The term bisexual refers to people who are romantically or sexually attracted to both males and females. This means that they have no particular sexual preference on one or the others and has erotic interests in both genders.

In this example, Alastair is currently in a relationship with a woman but he has also dated men in the past. He has no particular sexual preference and has erotic interests in both men and women.

Thus, we can say that Alastair is most likely bisexual

the article must be ratified by three-fourths (38) of states within a proscribed deadline.

source:

answer; the merit selection, also known as the missouri plan;