All the squares to Pluto can cause a toxic-love problem as they are coming from Leo, the sign that most loves to be in a romantic relationship because the ego craves the attention/love/adulation of another person. Pluto is like adding a nuclear charge to the thing that it's aspecting. Pluto is magnetic and sends out an invisible invitation to get entangled, but the entanglements can be of the dark side, toxic variety. Mars square Pluto can be abusive/violent.
Pluto brings in willfulness, intensity, obsession, "too much too soon", over-sexual, power-dominance issues, giving and withholding (all or nothing) as a manipulative ploy .... Pluto in the 3rd house can be over-insistent, over-talkative, then switch to long silences or the withholding of information, while trying to get information about other people.
This is one of the best websites for reading about the psychological dynamics of Pluto -
https://chirotic.wordpress.com/2009/04/28/pluto-and-the-personal-planets-revisited/
The opposition to Saturn from Venus-Jupiter-Mars can be helpful because Saturn always urges caution, 'wait and see', moderation, etc. Saturn is the antidote to Jupiterian and Plutonic excess. Past-life astrologers teach that what is in our 12th house is of the last life, and must be compensated for in this life. These influences from the 12th house are often unconscious, habit-ruled features of our personality, they are also called our 'self-undoing' aspects: where we shoot ourselves in the foot until we learn to recognise and transform the negative form of behaviour that they represent.
I notice you say you are gay, but in other recent threads you said you are straight. Is this Pluto-in-3rd house manipulation of the reader, or the Sun-Mercury in Gemini looseness with the truth? It doesn't help when you give contradictory information like that.