Hi unknown
I can understand your concern. Just by having intercourse once, the vagina does not tighten or loosen and your partner will not be able to figure it out.
Bleeding from the hymen may or may not happen again if the hymen has been ruptured once.
Next Steps
You can consider hymenoplasty
Health Tips
Please do not destroy your personal life and live in fear. Most men are wonderfully supportive and loving to their partners and a successful relation is not built only on sex.