Is it normal that my boyfriend watches porn after we have sex?

well porn and avoiding discussions together looks very bad.

You are correct porn has little to do with commitment, however avoiding conversations and looking at other women directly after sex is not only disrespectful; it could be that he is watching another woman have sex to fulfill his "needs".

This could result in him secretly getting his needs elsewhere if he would not respect your presence and watch it in front of your face.

for example, if I flirted with another woman in the presence of my girlfriend it would show to her that I do not respect our relationship, and or not love her.

Same applies to porn.

He is watching another woman unclothed in front of you right after sex.

This is not something that a respectful man would do.

If you are fine with him watching porn then that's up to both of you, but right after sex should be cuddle time and bonding.

I think porn is a distraction from enjoying the person who you are with.

So it is my choice to bond deeply with my lover after sex.

It seems he does not care about the relationship, which could lead to infidelity if he blatantly looks at porn after sex.