Hey, I'm really sorry to hear that you're experiencing this and are feeling really bad as a result! :( I personally don't think that you feeling this way is something that you need to change, I think you should talk about this with your husband and explain how bad this is making you feel so you can both work through it and find a solution that works for you both. :)
You can tell your husband to stop as it makes your feel uncomfortable and you do not like it. You could remind him that he is married and its inappropriate to flirt with other girls, whether it is online or in person.
You shouldn't have to stop feeling the way you do because in my opinion you are completely valid in feeling this way. I would feel the same way. Tell him that it hurts you and you need him to understand how it makes you feel. If he loves you, he will listen and take your feelings into consideration. If not, then you should probably take a step back and ask yourself if this is the kind of treatment you truly deserve. No one deserves to not be treated with that level of respect in their relationship. Be strong, love ❤
Hi! It sounds like this is a really difficult situation for you. I imagine it would be a very challenging situation for a lot of people.
First, I encourage you to allow yourself to feel however you are feeling. If it it sad, be sad. If it angers you, be angry! In these types of situations it is important to honor your feelings.
Second, name some of the feelings you have, but do not try to overanalyze these feelings. For example, try to avoid start any questions you ask yourself with "why?" Ask yourself, "why do I always feel this way?" probably will not help you feel better.
Third, be kind to yourself and try to talk to yourself in the way you talk to a friend with empathy!
Fourth, I suggest that you communicate to your husband that you are upset and why you are upset (if you have not done so already). Be completely honest and don't be afraid to be vulnerable.
Fifth, ask your husband to explain the reasons that he likes to flirt with girls on social media. Relationships take compromise, negotiation, and insane amounts of empathetic, active listening. Maybe there is something else going on that he has been afraid to share with you and this is his outlet. Maybe he has a kink that he is afraid to tell you about. Or maybe he is completely out of line and out of bounds. Regardless of the reason, you two need to discuss a negotiation or termination of his flirtation with girls on social media.
Good luck and know that this community is always around to listen!