No.

In Jainism, it is not taught as a strict rule that two souls are forbidden to meet in heaven after human life. But it is also not guaranteed that they will meet there, because:

• Heaven in Jainism is temporary, not eternal.
• A soul’s next birth depends on karma.
• Repeated lustful or sinful attachment binds bad karma, so it may reduce the chance of a heavenly birth.

So the strict Jain answer is: not forbidden, but not assured.