I don't see the issue so much as being about betrayal. It seems to me that it is more about 'communication' and your ability to relate to a potential partner in a clear and positive fashion. You seem to hold back and not communicate clearly.
Saturn in Virgo in the 3rd can be negative and nit-picky. You might be sending mixed messages and confusing the situation. Your Saturn makes no other major aspects other than those to the Merc/Mars in Taurus in the 10th. You may attempt to send a casual, 'no strings attached' message, when you are feeling just the opposite, in terms of your hopes for the future of the relationship? The trine to Merc is wide and out of sign. So you might send a 'false' message that you are OKAY with things that you are not really OK with.
The Jupiter in the 1st in Cancer is very emotional, and very connected to the urge for intimacy but the squares from Merc/Venus/Mars want to 'pretend' there is autonomy and individual need for 'separation, individualism. But there is also an ongoing need to merge and be totally 'in sync' and in love. It is hard to unite these two 'urges.'
Thank you katydid for your detailed reply ... I am afraid of the future maybe that is one thing, and what you describe looks like the clash between my cultural background and the culture of the place I was born and raised, wich fits perfect to what is always an issue for me, individualism versus values of family, freedom versus wanting to have my own family, saying "yes" to adopted values wich don't really fit with what I have on my list for myself etc. maybe I should say "no" more often and stay true to myself, than take the easy way and say "yes" to things that I am not 100% agree with and live a false vision or even worse, the vision of others.
Even if this is a little off-topic here:
I also guess, the upcoming pluto pluto square will crack that "nut" open in a harsh way, but it has to be done, it has to happen, the nut is what will feed me with new insights and energy. But first there must be a release, I know that, and feel it.
Have a great day
G.