Hi,
Further to Waybread's remarks, you do have the difficult Venus (love) in 3rd house (encounters in youth)square (conflict) Pluto (power control) in 5th house (love affairs; self expression; parent-child relationship) tied in with Mars(action, energy, lust). AND in the fixed signs. Venus desires love and/through
commitment, Mars doesn't. The two are natural antagonists. With Pluto entwined there is (obsessional, compulsive, jealous) passion, yet its almost a classic signature for 'true love doesn't run smooth'. The 'if you loved me, you would/wouldn't', as a means of imposing control of one's own will, especially if 'parental control' is a factor. It can become a contest between which part of one's traits (or another's will) is the stronger.
The fixed signs don't change and/or let go easily of the effects of circumstances, whilst Sun in Cancer semi-square Venus can resemble a memory bank holding on to situations that are best best allowed to die a natural death (Pluto!) before they 'eat away inside'.
It could be the residue of the effects of the deeply involved teenage relationship that plays its part upon the development of any other relationship. No desire to get burned (Leo) a second time?
With Sun and Moon in water signs, and the Uranus-Neptune in Capricorn factor breaking down all sense of outer authority, a person could be very gullible towards outer forces stronger than themselves if they don't take charge, be responsible for, and protect themselves against their own weakness(es).
The non-physical astrological point Black Moon Lilith in Capricorn could explain a reason for 'distancing one's self' from physical involvement (Sun opp. MEAN BML; Mars-Venus inconjunct MEAN BML). A fear of rejection could act as an invisible barrier that keeps one self-imprisoned inside because it does not allow others on the outside to get close.
There can be a right or wrong reason for such an action.