All perfect praise be to Allaah, The Lord of the Worlds. I testify that there is none worthy of worship except Allaah, and that Muhammad, sallallaahu ‘alayhi wa sallam, is His slave and Messenger.
First of all, we advise you to continue to supplicate as much as possible as this is the best means by which a Muslim achieves what he desires and repels what he fears, as Allaah says (what means): {And your Lord says, “Call upon Me; I will respond to you.” Indeed, those who disdain My worship will enter Hell [rendered] contemptible.} [Quran 40:60]
So, you should ask Allaah to repel from you and your husband the whispers of the devil, as he is keen on separating those who love each other.
You should give your husband advice in a soft and gentle manner and clarify to him the Islamic ordinance to keep company with the pious and warn him against keeping company with the evil. Abu Moosa Al-Ash‘ari narrated that the Prophet, sallallaahu ‘alayhi wa sallam, said: “The example of a good companion (who sits with you) in comparison with a bad one is like that of the musk seller and the blacksmith's bellows; from the first you would either buy musk or enjoy its good smell while the bellows would either burn your body or your clothes or you get a bad nasty smell from it.” [Al-Bukhari and Muslim]
This Hadeeth clarifies that the companion affects his companion negatively or positively.
In addition to avoiding sitting with bad companions, one is required in Islam to express disapproval against anyone one sees committing a wrong, otherwise one will be complicit in the wrong. If the person who does the wrong does not stop, then one is obliged to get up and leave as Allaah says (what means): {And it has already come down to you in the Book that when you hear the verses of Allaah denied [by them] and ridiculed, then do not sit with them until they enter into another conversation. Indeed, you would then be like them. Indeed Allaah will gather the hypocrites and disbelievers in Hell all together-} [Quran 4:140]
Saying that sitting with them is a “worldly liability” may be just a lure of one’s desires to sit with them, and saying that spoon feeding is not effective with every single person is correct but this should not be taken as a reason not to advise them and to provide excuses for sitting with them.
Finally, we advise you to beware of accusing your husband of something abominable without evidence as this consists in the negative assumptions that Allaah has warned us against. Allaah says (what means): {O you who have believed, avoid much [negative] assumption. Indeed, some assumption is sin.} [Quran 49:12]
Your husband sitting with bad people does not necessarily mean that he does the evil things that they do such as exchanging dirty things on social media as you mentioned.
Allaah Knows best.