Do you advise me to speak with a female colleague I admire about marriage now, knowing that I cannot get married for another ten years, and my relationship with her is limited? What is the best way to deal with this situation?

The questioner must guard his gaze from what Allah has forbidden, submit to His (Exalted be He) judgment, and avoid forming a relationship with a woman before marriage, because that is a gateway for Satan. We advise him not to preoccupy his heart with women and marriage as long as he is currently unable to afford it, and to maintain chastity through work, study, remembrance of Allah, acts of obedience, and fasting until Allah enriches him from His bounty.