Rolling with a female friend

[Fantasian]

SWIM has used E twice before once in the form of MDMA and once in the form of a pill.

SWIM plans to use MDMA again at a slightly higher dosage than last time but his friend wishes to be a sober sitter which SWIM has no problem with however. SWIM and his sitter (K), used to go out but are now just friends. SWIM is worried that while he is on MDMA she might take advantage of him as SWIM believes that K still likes him.

SWIM has a girlfriend and is happy with her and after 7 months he doesnt want to mess that up.

My question is while on MDMA do you think SWIM will be easy to take advantage of?