Does the tip count?

So this is an ongoing saga for me, the past two days I've(27m) posted on here about my wife(29f)

For anyone who missed the backstory, we've been together 4 years and have sex about twice a year. We still have physical affection like kissing and cuddling etc but no sex or sexual contact like oral.

So I'm laying in bed while she sleeps while I type this, my head's still fuzzy. I went to bed earlier that her and fell asleep, I get woken up around 11pm by her tongue on my cock. I'm honestly just surprised, I'm still half asleep while my hips are moving and apparently I started begging her. She then started to suck my cock for a few seconds while she hasn't done in years.

I take off her underwear and go down on her until she cums and then think I'll quit while I'm ahead. I lay next to her and hold her, caressing her face and then she starts to stroke my cock. I take the hint and lay her down and start to slide it in.

The tip slides in and I can feel she's a lot tighter than normal, she wincing in discomfort and I ask her if she's ok, she says yes. I keep going, trying to go deeper but she's clearly uncomfortable so I pull out.

She says "it's the friction" and then goes to the bathroom. Comes back later and cuddles me and falls asleep.

I feel like I've been hit with whiplash. Sorry if this post is too long but now I need to vent.

I have a mix of frustration, resentment, and gratitude. I hate that I feel grateful for getting a 5 second blowjob and the tip wet for a couple thrusts. I hate that THATS what my sex life is now. But also I know I should be happy I got anything. Maybe this will mean she'll be in the same mood tomorrow? Maybe thats my sex for the year.

Also some advice would be appreciated about what she said regarding friction. She was wet, so I don't know what caused it. Was it just how tight she was when I put the tip in? Was my dick dry and that's what caused it? Do I turn her off so much she dried up as soon as I got between her legs?

Any tips on negating friction would be appreciated