Comfortable synastry/awkward synastry

Do you know of any aspects that make you feel comfortable with a person? Any aspects that male you feel awkward with another person?

Sun-Moon conjunction, trine, or sextile (one or both ways)
Good/Easy/Comfortable aspects:
Sun/Moon-Venus/Jupiter conjunct, trine, or sextile (one or both ways)
Sun conjunct, opposite (can go either way, really depends on other placements), trine, sextile Sun
Moon conjuct, opposite, trine, sextile moon
Venus conjunct, opposite, trine, sextile Venus
Mars opposite (can go either way, really depends on other placements), trine sextile Mars
Mars trine or sextile Sun/Moon (and venus, particularly if it's romantic in nature)
Aspects between Jupiter and Neptune, and personal planets.
Some Uranian influences (trines and sextiles are easiest) can be fun/interesting too.
Pluto trines and sextiles can be good (esp. in a romantic setting when mars/venus are involved)

Aspects that can make things awkward/uncomfortable/intense (for better or worse):
Pluto conjunct, opposite, or square Sun/Moon/Venus/Mars; for more the mature/evolved individuals that can handle this energy, the conjunct and opposition can work for the better...Either way, these are very intense aspects...Usually life changing...
Some Saturn aspects (esp. squares) to personal planets as well
Uranus conjunct, square, or opposite, also depending on the people involved and how well they handle "Uranian energies"/tendencies...
Mars Conjunct, opposite, or square Sun/Moon/Venus/Mars (but esp. the Sun and/or Moon)
Sun-Moon Square, Moon-Moon square, Sun-Sun square

All the ones can think of off the top of my head.

WOW thank-you so much TaureanVirgo! Very huge help indeed! 🙂 I appreciate it.

You're welcome 🙂 I forgot the Mercury aspects though lol.

Any aspect between Mercury-Mercury in a chart would be stimulating. How well the harder aspects play out will depend other placements both in the charts of the individuals, and the synastry aspects. Oppositions can go either way

Good:
Mercury conjunct, trine, sextile Moon/venus/Sun/Jupiter/Neptune/Pluto
Mercury trine or sextile Mars/pluto

Uneasy:
Mercury square Sun/Mars/Pluto

12th house placements in overlays can also create a feeling of unease/vulnerability.