The Three of Pentacles represents a situation of secrecy, of things in motion and of things well hidden. The card suggests that the person in question has something to hide and may want to keep his criminal past hidden. This could affect the possibility of establishing a fulfilling relationship as a person's past tends to influence their future choices, especially in the relational sphere.
The reversed Ten of Pentacles suggests that the person is not ready to face the issues of his past. Furthermore, the card could also indicate that this person is trying to avoid facing reality and the consequences of his actions. As a result, you may not be ready to build a fulfilling relationship with someone with a criminal background.
The High Priestess shows a spiritual and intellectual side to the situation. The card suggests that if the person in question is willing to face his past and understand how it has influenced his decisions, then there is the possibility of building a fulfilling relationship with someone who has a criminal past.
In conclusion, the three tarot cards show that the likelihood of having a fulfilling relationship with someone who has a criminal past depends on the person concerned's ability to face his past and learn from his mistakes. If the person is willing to do this inner work, then they can build a solid and fulfilling relationship with someone who has a criminal background.