Saṃvega or something else? Integrating sammuti sacca with paramattha sacca
Philosophical thoughts can come to the mind at anytime. You shouldn't get too excited about them as that can lead to complacency, ego and false self assessments. Simply note them rising and passing away. If you are not enlightened, you are not safe no matter how deep you feel or think.

Don't focus much on love. Usually Patikulamanasikara meditation is recommended to people with lust issues. The details are in the Visuddhimagga. You can also do Silanussati and try to perfect your virtue. One suggestion is to stay in a forest monastery for a while, stay away from women and work on taming the mind.