At what point does 'a little immodest' become 'too immodest'? This sounds like someone trying to get to the very edge while 'technically' staying on the right side. Go as far as you can so you can say 'see, i'm technically still in the right'. But God looks at the heart, and He knows the difference between a heart that want's to do right and one that wants to push the envelope. A heart that want's to do right and please God would rather stay in the clear, fully, to ensure they are right. But people who are trying to have the best of both worlds always want to get away with as much as possible while proving they aren't wrong. But that isn't a desire to DO right, that's a desire to do what you want and get away with as much as possible. How close can i get to sin, without actually sinning?
Also, i see this on this site all the time. People come on here, they have a question on a decision. People answer, but the person doesn't hear what they want. Then rather than thinking 'ok, most people are in agreement so maybe that's right', they instead argue. Few people come here to get advice, but rather are seeking approval of the choice they've already made in their heart, but deep inside feel something telling them it's wrong. So they go out looking for people to support that choice, and when they don't get that support, they disregard the advice and/or push their point of view. Such as you're doing now.