What do you think?

A (25M) had an ambiguous relationship with this C (25F) that didn’t end up together (both A and C likes each other but because C didn’t want any “official relationship” during that time hence A just decides to let the relationship just died off without conclusion or decision [no contact after “the talk”). C contacted him after 3 years but the conversation didn’t last long as C was taking too long to reply and ghosting even though C initiated the conversation.

After the incident above, A met B (25F) and got together (4 years and counting) and are in a relationship right now (no relationship problems with A and B). A is currently working in US and B at home (LDR).

D (25M) is a best friend with B in college but actually had a crush on B and confessed but didn’t work out because D didn’t know A & B have been together for a while.

Awkward at first, but eventually everything went back to normal and B & D [D still single] still hang out all the while [most of the time initiated by D](A has no problems with it as B assures that B has no interest with D)

C is currently working in Australia. A has some questions about working in Australia (A & C are in same field).

TLDR?

1. If A contacts C, does it consider unfaithful to B? (undeniably A still has some little interest with C).

2. Would the weightage/moral value (or whatever it calls) of how B and D interacts on the same level if A contacted C about some proper career question?

Not sure how to phrase in a sentence. If you get it then you get it

3. Does it consider A cheating B if A contacts C to ask about some career questions?

* A and B quite sure D doesn’t stand a chance, as AB are in LDR 2 years already, everything’s looking not too bad.

Thank you.