Whether a guy will leave or not if you don't sleep with him right away depends on the individual and the specific circumstances involved. There is no one-size-fits-all answer to this question, as people's actions and decisions are influenced by various factors, including their values, personality, and intentions.
Some guys may indeed lose interest or move on if they are primarily seeking a casual or purely physical relationship and encounter resistance when it comes to intimacy. However, this doesn't apply to all men. Many are respectful, understanding, and willing to build a deeper connection beyond just physical intimacy.
A healthy relationship is based on mutual respect, trust, and open communication. If a person leaves simply because you didn't engage in sexual activity right away, it may be an indicator that their intentions were not aligned with forming a meaningful and long-lasting connection.
It's essential to remember that you should never feel pressured to engage in any intimate activity before you are ready. Take the time to get to know someone, assess your compatibility, and ensure that you both share similar expectations and intentions for the relationship. If someone truly values you and wants to be with you for the right reasons, they will respect your boundaries and pace.