It is natural to want to give someone time when you know they have been through a difficult experience. But being understanding does not mean putting your own needs aside indefinitely. If you want a committed relationship and they can offer only something casual, neither person necessarily has to be wrong. You still need to decide whether the situation works for you.
Dating someone who has recently ended a relationship can lead to something meaningful, but it requires honesty from both people. You do not have to rush them, and they should not feel pressured to move faster than they are ready for. At the same time, you do not need to wait indefinitely for someone to decide what they want. Give the connection room to grow while paying attention to whether your expectations and actions are compatible.